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United States Prenatal Care Schedule

This is a general overview of the prenatal visits many people in the United States are offered during pregnancy, drawn from public guidance by ACOG and the WHO. Every pregnancy is different — your own care provider decides which checks and timing are right for you. It's here for reference and orientation, not as medical advice.

Disclaimer: BabyBerry is for general information and self-tracking. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
  1. First Prenatal Visit — Weeks 6–8
  2. First Trimester Screening — Weeks 10–12
  3. Second Trimester Visit — Weeks 14–16
  4. Anatomy Scan — Weeks 18–22
  5. Glucose Screening — Weeks 24–28
  6. Third Trimester Start — Weeks 28–30
  7. Growth Check — Weeks 30–32
  8. Biweekly Visit — Weeks 32–34
  9. GBS Screening — Weeks 35–36
  10. Full-Term — Weekly Visit — Week 37
  11. Weekly Visit — Week 38
  12. Weekly Visit — Week 39
  13. Due Date Visit — Week 40

First Prenatal Visit

First prenatal visit · Weeks 6–8 · Fasting may be needed

Pregnancy confirmation, full blood panel, dating ultrasound, medical history

Good to know: Your first prenatal visit is the most comprehensive appointment of your entire pregnancy. The doctor will take a detailed medical history, perform a physical exam, order a full panel of blood tests, and confirm your pregnancy with an ultrasound. This visit establishes your baseline health and identifies any risk factors early so they can be managed throughout your pregnancy.

Common checks

  • Dating Ultrasound — A dating ultrasound is typically performed at your first prenatal visit to confirm your pregnancy and determine how far along you are. The doctor will check that the embryo has implanted in the uterus (ruling out ectopic pregnancy), measure the gestational sac and embryo, and if you are far enough along, detect the baby's heartbeat. This scan establishes your estimated due date.
  • Complete Blood Count (CBC) — A complete blood count measures your red blood cells, white blood cells, and platelets. This test checks for anemia (low iron), infection, and clotting ability. The results from this first visit serve as your baseline, so your doctor can track any changes throughout pregnancy.
  • Blood Type and Rh Factor — This blood test determines your blood type (A, B, AB, or O) and whether you are Rh-positive or Rh-negative. If you are Rh-negative and your baby is Rh-positive, your body could produce antibodies that attack the baby's blood cells. Knowing this early allows your doctor to give you RhoGAM injections to prevent complications.
  • Rubella Immunity (German Measles) — This blood test checks whether you are immune to rubella (German measles). Rubella infection during pregnancy can cause serious birth defects including heart problems, hearing loss, and intellectual disabilities. If you are not immune, your doctor will advise you to avoid exposure and recommend vaccination after delivery.
  • Hepatitis B Surface Antigen — This screening checks for active hepatitis B infection, which can be passed to your baby during delivery. If you test positive, your newborn will receive a hepatitis B vaccine and immunoglobulin shot at birth to prevent infection. Early detection is key to protecting your baby.
  • HIV Screening — HIV screening is recommended for all pregnant women as part of routine prenatal care. If HIV is detected early, antiretroviral medications during pregnancy can reduce the risk of transmitting the virus to your baby to less than 1%. This test is confidential and is a standard part of prenatal blood work.
  • Syphilis Screening (RPR/VDRL) — This blood test screens for syphilis, a sexually transmitted infection that can cross the placenta and infect the baby, potentially causing serious complications including preterm birth, low birth weight, and congenital syphilis. Early detection allows for effective antibiotic treatment.
  • Urinalysis and Urine Culture — A urine sample is collected to check for urinary tract infections (UTIs), protein in the urine (which could indicate kidney issues), and glucose levels (an early flag for gestational diabetes). Untreated UTIs during pregnancy can lead to kidney infections and preterm labor, so catching them early is important.
  • Pap Smear (if due) — If you are due for cervical cancer screening, your doctor may perform a Pap smear at this visit. This test collects cells from your cervix to check for abnormalities. A Pap smear is safe during pregnancy and does not increase the risk of miscarriage. It is typically done only if you haven't had one in the past three years.
  • STI Screening (Chlamydia and Gonorrhea) — ACOG recommends screening for chlamydia and gonorrhea at the first prenatal visit. These infections often have no symptoms but can cause preterm labor, low birth weight, and eye infections in newborns if left untreated. Both are easily treated with antibiotics during pregnancy.
  • Thyroid Function (TSH) — A thyroid-stimulating hormone (TSH) test evaluates how well your thyroid is functioning. Untreated thyroid disorders — both hypothyroidism (underactive) and hyperthyroidism (overactive) — can affect your baby's brain development and increase the risk of preeclampsia and preterm birth. If your levels are abnormal, medication can safely manage the condition during pregnancy.
  • Blood Pressure and Weight — Your blood pressure and weight are recorded at every prenatal visit starting from the first appointment. These baseline measurements are critical for tracking changes throughout pregnancy. A rise in blood pressure later in pregnancy could signal preeclampsia, and weight trends help ensure healthy growth for both you and baby.

How to prepare

  • Come fasting (no food for at least 8-10 hours before), as blood work including glucose and lipids may be drawn.
  • Write down the first day of your last menstrual period (LMP) — this is essential for calculating your due date.
  • Prepare a list of all medications, vitamins, and supplements you are currently taking.
  • Gather your family medical history (both sides), including any history of genetic conditions, birth defects, diabetes, or high blood pressure.
  • Write down any questions or concerns you have — first visits can be long, and it is easy to forget things.

Tips

  • This appointment may take 1-2 hours due to the extensive blood work and history-taking. Bring a snack for after the blood draw and something to keep you occupied during wait times.
  • If you do not yet see a heartbeat at 6 weeks, do not panic — it is often too early. Your doctor will likely schedule a follow-up ultrasound in 1-2 weeks.
  • Start taking a prenatal vitamin with at least 400-800 mcg of folic acid daily if you have not already. Folic acid is critical for preventing neural tube defects in the first trimester.
  • Ask your doctor about foods to avoid (raw fish, deli meats, unpasteurized cheese) and safe exercise guidelines.

First Trimester Screening

Visit 1 · Weeks 10–12

NT scan, first trimester blood work, optional cell-free DNA screening

Good to know: First trimester screening combines a special ultrasound (NT scan) with blood tests to assess your baby's risk for chromosomal abnormalities like Down syndrome. This screening is optional but recommended, and has a detection rate of about 85%. For even higher accuracy, you may opt for cell-free DNA screening (NIPT), which detects over 99% of cases. Remember, screening tests assess risk — they do not diagnose. A positive screen means further testing is recommended, not that your baby definitely has a condition.

Common checks

  • Nuchal Translucency (NT) Ultrasound — The NT scan is a specialized ultrasound that measures the fluid-filled space at the back of your baby's neck. An increased measurement may indicate a higher risk for chromosomal conditions such as Down syndrome (trisomy 21), Edwards syndrome (trisomy 18), or heart defects. The scan must be performed between 11 weeks 0 days and 13 weeks 6 days for accurate results. It is painless and takes about 20-30 minutes.
  • First Trimester Blood Screen (PAPP-A and hCG) — This blood test measures two proteins in your blood: pregnancy-associated plasma protein-A (PAPP-A) and human chorionic gonadotropin (hCG). When combined with the NT ultrasound measurement and your age, these results produce a risk assessment for Down syndrome and trisomy 18. This combined screening detects about 85% of Down syndrome cases with a false-positive rate of about 5%.
  • Cell-Free DNA Screening (NIPT) — Optional — Non-invasive prenatal testing (NIPT) is an optional blood test that analyzes fragments of your baby's DNA circulating in your blood. It screens for trisomy 21, 18, and 13 with greater than 99% accuracy, and can also reveal your baby's sex. NIPT is recommended for all pregnant women by ACOG and can be done as early as 10 weeks. It is a screening test, not diagnostic — abnormal results require confirmation with amniocentesis or CVS.
  • Blood Pressure and Weight — Routine monitoring of blood pressure and weight at each visit to track trends and detect any early concerns.
  • Urinalysis — A urine sample is checked for protein, glucose, and signs of infection. This is a quick, routine part of every prenatal visit that helps catch developing issues early.
  • Fetal Heart Rate (Doppler) — Starting around 10-12 weeks, your doctor may use a handheld Doppler device to listen to your baby's heartbeat. A normal fetal heart rate is between 110 and 160 beats per minute. Hearing the heartbeat for the first time is often an exciting milestone for parents.

How to prepare

  • Fasting is generally not required for this visit, but check with your doctor's office in advance.
  • Wear comfortable clothing with easy access to your abdomen for the ultrasound.
  • If you are considering NIPT, research your insurance coverage beforehand — costs vary, but many insurers now cover it for all ages.
  • Bring your partner or a support person if you would like them to see the ultrasound.

Tips

  • The NT scan has a narrow window (11-13+6 weeks), so schedule it promptly when your doctor recommends it. Waiting too long means it cannot be done accurately.
  • If your screening comes back as "high risk," try not to panic. A high-risk result means further testing is recommended — most women with a positive screen go on to have healthy babies after diagnostic testing.
  • NIPT can tell you the baby's sex as early as 10 weeks. If you want to be surprised, let your doctor know so they can keep the results confidential.
  • This is a good time to discuss genetic carrier screening with your doctor, especially if there is a family history of genetic conditions like cystic fibrosis, sickle cell disease, or spinal muscular atrophy.

Second Trimester Visit

Visit 2 · Weeks 14–16

Quad screen option, routine monitoring, genetic counseling if indicated

Good to know: If you did not have first trimester screening or NIPT, the quad screen offers a second trimester opportunity to assess your baby's risk for chromosomal conditions and neural tube defects. Even if you had NIPT, your doctor may recommend an AFP blood test between 15-18 weeks specifically to screen for neural tube defects like spina bifida, which NIPT does not detect. This visit is also a good time to ask about any symptoms you are experiencing as you transition into the second trimester.

Common checks

  • Quad Screen (AFP Test) — If Not Done NIPT — The quad screen (also called AFP test or maternal serum screening) is a blood test performed between 15 and 22 weeks that measures four substances in your blood: alpha-fetoprotein (AFP), hCG, estriol, and inhibin-A. It screens for Down syndrome, trisomy 18, and neural tube defects such as spina bifida. If you already had NIPT or first trimester screening, your doctor may recommend AFP alone to screen specifically for neural tube defects.
  • Fundal Height Measurement — Starting in the second trimester, your doctor will measure the distance from your pubic bone to the top of your uterus (the fundus). This measurement in centimeters roughly corresponds to your gestational age in weeks. A measurement that is significantly larger or smaller than expected may prompt an ultrasound to check on baby's growth and amniotic fluid levels.
  • Fetal Heart Rate (Doppler) — The doctor will use a Doppler device to listen to your baby's heartbeat. A normal rate is 110-160 beats per minute. By this stage, the heartbeat is usually easy to find and you can hear it clearly.
  • Blood Pressure and Weight — Routine blood pressure and weight checks continue at every visit. Steady weight gain of about 1 pound per week is typical in the second trimester.
  • Urinalysis — A routine urine sample is tested for protein, glucose, and bacteria. Detecting gestational diabetes or preeclampsia markers early allows for timely management.

How to prepare

  • Fasting is not typically required. Eat normally before your appointment.
  • If you are between 15 and 18 weeks, this is the optimal window for the quad screen blood draw.
  • Write down any new symptoms you have been experiencing, such as round ligament pain, headaches, or changes in appetite.
  • If previous screening indicated elevated risk, prepare questions for a genetic counseling discussion.

Tips

  • Many women start feeling better in the second trimester as morning sickness and fatigue tend to ease. This is often called the "honeymoon trimester."
  • You may begin to feel your baby's first movements (quickening) between 16-22 weeks, often described as fluttering or bubbling. First-time moms usually notice it closer to 20 weeks.
  • This is a great time to start thinking about childbirth education classes and hospital tours — popular classes fill up quickly.
  • If you have not already, discuss your exercise routine with your doctor. Most moderate exercise is safe and beneficial during pregnancy.

Anatomy Scan

Visit 3 · Weeks 18–22

Detailed anatomy ultrasound, structural survey of all organs

Good to know: The anatomy scan (typically at 18-22 weeks) is the most anticipated and comprehensive ultrasound of your pregnancy. It serves as a detailed structural survey of your baby, checking that all major organs and systems are developing normally. The scan can detect most major birth defects, including heart defects, spina bifida, and limb abnormalities. Keep in mind that no ultrasound can guarantee a perfectly healthy baby — some conditions are too subtle to detect or may develop later in pregnancy.

Common checks

  • Anatomy Ultrasound (Level 2 Ultrasound) — The anatomy scan is the most detailed ultrasound of your pregnancy. A sonographer will systematically examine your baby's brain, face (checking for cleft lip), spine, heart (all four chambers), stomach, kidneys, bladder, arms, legs, hands, and feet. They will also measure the baby's size, check the placenta location, assess amniotic fluid volume, and examine the umbilical cord. This scan typically takes 30-60 minutes and can often reveal the baby's sex if you want to know.
  • Placenta Location Assessment — During the anatomy scan, the sonographer will note where the placenta is attached in the uterus. If the placenta is covering or very close to the cervix (placenta previa), you will need follow-up scans later in pregnancy. In most cases, a low-lying placenta moves upward as the uterus grows, but it needs to be monitored.
  • Amniotic Fluid Volume — The amount of amniotic fluid surrounding your baby is measured during the ultrasound. Too much fluid (polyhydramnios) or too little (oligohydramnios) can indicate potential concerns that your doctor will want to monitor. Normal fluid levels are a reassuring sign that your baby's kidneys and swallowing reflex are functioning well.
  • Fetal Heart Rate (Doppler) — Your baby's heart rate is checked routinely at every visit using a Doppler device. Normal heart rate remains 110-160 beats per minute.
  • Blood Pressure and Weight — Continued routine monitoring. Your doctor will look for any sudden increases in blood pressure or weight gain, which could signal developing complications.
  • Urinalysis — Routine urine check for protein, glucose, and signs of infection.

How to prepare

  • You do not need to fast. In fact, eating before the scan can help because an active baby is easier to image.
  • Wear a two-piece outfit so you can easily expose your belly.
  • Decide in advance whether you want to know the baby's sex and let the sonographer know.
  • The scan can take up to an hour. If the baby is not in a good position, you may be asked to walk around and come back.
  • Bring your partner or support person — this is an exciting scan where you will see your baby in detail.

Tips

  • If the sonographer is quiet during the scan, do not assume something is wrong. They are concentrating on getting precise measurements and images of many different structures.
  • Sometimes the baby's position makes it difficult to see everything in one session. If this happens, you may need to return for a follow-up scan — this is common and not a cause for concern.
  • If a "soft marker" is found (such as an echogenic bowel, choroid plexus cyst, or single umbilical artery), do not panic. These are common findings that usually resolve on their own and rarely indicate a problem, especially if your genetic screening was normal.
  • Ask for printed images or a digital copy of the ultrasound photos to keep as a memento.

Glucose Screening

Visit 4 · Weeks 24–28 · Fasting may be needed

Gestational diabetes screening (glucose challenge test), Rh antibody screen, CBC

Good to know: The glucose screening between 24-28 weeks is one of the most important tests of your pregnancy. Gestational diabetes affects about 6-9% of all pregnancies and, if unmanaged, can cause the baby to grow too large (macrosomia), increase the risk of birth injuries, and lead to neonatal blood sugar problems. The good news is that gestational diabetes is very manageable — most women control it through diet and exercise alone. This visit also includes the Rh antibody screen and RhoGAM injection for Rh-negative mothers.

Common checks

  • Glucose Challenge Test (GCT) — 1-Hour — The one-hour glucose challenge test screens for gestational diabetes. You will drink a sugary beverage containing 50 grams of glucose, and your blood will be drawn exactly one hour later. If your blood sugar is 140 mg/dL or higher (some practices use 130 mg/dL), you will need the follow-up three-hour glucose tolerance test (GTT) to confirm the diagnosis. You do not need to fast for the one-hour screen, but many doctors recommend avoiding sugary foods beforehand.
  • Glucose Tolerance Test (GTT) — 3-Hour (If Needed) — If your one-hour screen is elevated, you will return for a three-hour glucose tolerance test. You must fast for at least 8 hours before this test. Your fasting blood sugar is drawn first, then you drink a beverage containing 100 grams of glucose. Blood is drawn at 1, 2, and 3 hours. If two or more values are abnormal, you are diagnosed with gestational diabetes. About 15-25% of women who fail the one-hour screen are diagnosed with GDM after the three-hour test.
  • Rh Antibody Screen — If you are Rh-negative, a repeat antibody screen is performed at 28 weeks. If no antibodies are detected, you will receive a RhoGAM injection (anti-D immunoglobulin) to prevent your body from producing antibodies against your baby's blood cells. This injection is given around 28 weeks and again after delivery if the baby is Rh-positive.
  • Complete Blood Count (CBC) — A repeat CBC is drawn to check for anemia, which is common in the second and third trimesters as your blood volume increases significantly. If your hemoglobin is low, your doctor may recommend iron supplements.
  • Blood Pressure and Weight — Routine monitoring continues. By 28 weeks, many women have gained 15-20 pounds total. Your doctor will ensure your weight gain is on track for your pre-pregnancy BMI.
  • Fundal Height Measurement — The fundal height is measured to assess fetal growth. At 28 weeks, it should be approximately 28 centimeters. Significant discrepancies may prompt an ultrasound.
  • Fetal Heart Rate (Doppler) — Routine Doppler check of your baby's heartbeat to confirm a healthy heart rate.
  • Urinalysis — Routine urine test. Glucose in the urine is common around the time of glucose screening and does not necessarily indicate gestational diabetes.

How to prepare

  • For the one-hour glucose challenge, fasting is not strictly required, but avoid eating high-sugar foods for 2 hours before the test for more accurate results.
  • If you need the three-hour glucose tolerance test, you must fast for at least 8 hours beforehand — schedule it as the first appointment of the day.
  • The glucose drink is very sweet — some women find it easier to drink it cold and quickly.
  • Bring a book, snack (for after the test), and entertainment, as you will be waiting in the office for at least an hour.
  • Do not skip this test. Gestational diabetes often has no symptoms, and undiagnosed GDM poses real risks to you and your baby.

Tips

  • Many women dread the glucose drink, but most tolerate it well. Drink it steadily and do not sip slowly — finishing it quickly reduces nausea.
  • If you are diagnosed with gestational diabetes, do not blame yourself. GDM is caused by hormonal changes in the placenta and can happen to anyone regardless of diet or weight. Work with your doctor and a dietitian to manage it.
  • If you are Rh-negative, the RhoGAM injection is typically given in the hip or arm at 28 weeks. It is a quick shot and protects your current and future pregnancies.
  • Start paying attention to your baby's movement patterns. By 28 weeks, you should be feeling regular kicks and movements throughout the day.

Third Trimester Start

Visit 5 · Weeks 28–30

Tdap vaccine, Rh immunoglobulin (if needed), kick counts, biweekly visits begin

Good to know: This visit marks the beginning of the third trimester and more frequent prenatal appointments — you will now be seen every two weeks instead of monthly. Two key items at this visit are the Tdap vaccine (which protects your newborn from whooping cough) and the RhoGAM injection for Rh-negative mothers. You will also learn about kick counts, a simple but powerful tool for monitoring your baby's well-being at home every day.

Common checks

  • Tdap Vaccination — The Tdap vaccine (tetanus, diphtheria, and pertussis) is recommended for every pregnant woman during each pregnancy, ideally between 27 and 36 weeks. Getting vaccinated during this window allows your body to produce antibodies that are passed to your baby through the placenta, providing protection against whooping cough (pertussis) during the first few months of life before the baby can receive their own vaccinations.
  • RhoGAM Injection (Rh-Negative Mothers) — If your blood type is Rh-negative, you will receive a RhoGAM injection around 28 weeks. This injection prevents your immune system from producing antibodies against the baby's Rh-positive blood cells (if the baby has inherited Rh-positive blood from the father). Without this injection, antibodies could attack the baby's red blood cells and cause hemolytic disease.
  • Blood Pressure and Weight — As you enter the third trimester, blood pressure monitoring becomes increasingly important. Preeclampsia most commonly develops after 28 weeks. Report any headaches, vision changes, upper abdominal pain, or sudden swelling to your doctor immediately.
  • Fundal Height Measurement — Continuing fundal height measurements to track fetal growth. Your doctor compares each measurement to previous ones to ensure consistent growth.
  • Fetal Heart Rate (Doppler) — Routine heart rate check. Your baby's heartbeat should be strong and regular between 110-160 beats per minute.
  • Urinalysis — Urine is tested for protein (a sign of preeclampsia when combined with high blood pressure), glucose, and bacteria. This quick test is done at every visit in the third trimester.
  • Kick Count Education — Your doctor will instruct you to begin daily kick counts. Starting at 28 weeks, choose a time each day when your baby is usually active, and count how long it takes to feel 10 movements. Most babies will produce 10 movements within 2 hours. A significant decrease in movement should prompt a call to your doctor.

How to prepare

  • Wear a short-sleeved shirt or one that is easy to roll up, as you may receive one or two injections (Tdap, possibly RhoGAM).
  • Start tracking your baby's kick counts daily from this week forward.
  • Make a list of any new symptoms to discuss, such as swelling, heartburn, back pain, or Braxton Hicks contractions.
  • Begin thinking about your birth plan preferences — pain management, who will be in the delivery room, cord blood banking, etc.

Tips

  • The Tdap vaccine may cause mild soreness at the injection site for a day or two. This is normal and temporary. The protection it provides your newborn is well worth it.
  • Close family members and caregivers who will be around the newborn should also get the Tdap vaccine at least 2 weeks before meeting the baby.
  • Braxton Hicks contractions (practice contractions) are common starting in the third trimester. They are irregular, painless tightenings of the uterus. If contractions become regular, painful, or occur more than 4-6 times per hour before 37 weeks, call your doctor.
  • Now is a great time to start a birth plan and tour the hospital or birth center where you plan to deliver.

Growth Check

Visit 6 · Weeks 30–32

Growth ultrasound (if indicated), fetal position assessment, routine monitoring

Good to know: Around 30-32 weeks, your doctor may order a growth ultrasound to make sure your baby is growing on track. This scan estimates fetal weight by measuring the head, abdomen, and thigh bone. Keep in mind that ultrasound weight estimates can be off by 10-15% in either direction. This is also an important time to check fetal position — most babies settle into a head-down position by 32 weeks, though there is still time for breech babies to turn.

Common checks

  • Growth Ultrasound (If Indicated) — A growth ultrasound may be performed around 30-32 weeks to estimate your baby's weight and assess growth. The sonographer will measure the baby's head circumference, abdominal circumference, and femur length. This scan also evaluates amniotic fluid volume and placental health. While not required for all pregnancies, it is commonly ordered if fundal height measurements are concerning or if there are risk factors for growth restriction or macrosomia.
  • Fetal Position Assessment — Your doctor will check your baby's position (presentation) through abdominal palpation using Leopold's maneuvers. By 32 weeks, most babies are head-down (cephalic). If your baby is still breech (bottom-first) or transverse (sideways), there is still time for the baby to turn on their own. Your doctor may discuss options like external cephalic version (ECV) if the baby remains breech closer to term.
  • Blood Pressure and Weight — Blood pressure is closely monitored in the third trimester. Sudden weight gain (more than 2 pounds in a week) combined with high blood pressure and protein in the urine may indicate preeclampsia, which requires close monitoring or intervention.
  • Fundal Height Measurement — Continuing to measure the fundal height to track growth. At 32 weeks, the measurement should be close to 32 centimeters.
  • Fetal Heart Rate (Doppler) — Routine check of the baby's heart rate. Your doctor will listen for a strong, regular heartbeat.
  • Urinalysis — Standard urine test for protein, glucose, and bacteria. Protein in the urine combined with elevated blood pressure is a red flag for preeclampsia.

How to prepare

  • If a growth ultrasound is scheduled, no special preparation is needed — eat and drink normally.
  • Continue daily kick counts and bring your records to share with your doctor.
  • Start preparing your hospital bag — pack essentials for yourself, your partner, and the baby.

Tips

  • Ultrasound weight estimates are not exact. If your baby measures "big" or "small," it does not necessarily mean there is a problem. Your doctor will look at the growth trend over time.
  • If your baby is breech at 32 weeks, do not worry yet. Many babies turn on their own before 36 weeks. Certain positions, like hands-and-knees or pelvic tilts, may encourage turning, though evidence is limited.
  • Third trimester insomnia is very common. Try sleeping on your left side with a pillow between your knees and under your belly for comfort. This position also optimizes blood flow to the placenta.
  • Consider signing up for a breastfeeding class if you plan to nurse. Learning the basics before delivery can help you feel more confident.

Biweekly Visit

Visit 7 · Weeks 32–34

Routine monitoring, preterm labor signs review, birth plan discussion

Good to know: Between 32-34 weeks, your visits transition to every two weeks as your due date approaches. This is a good time to finalize your birth plan and discuss it with your doctor. Topics to cover include pain management preferences (epidural, IV medications, natural techniques), who will be present during delivery, preferences for delayed cord clamping, and skin-to-skin contact immediately after birth. Also review the warning signs of preterm labor: regular contractions before 37 weeks, lower back pain that does not go away, pelvic pressure, and watery or bloody vaginal discharge.

Common checks

  • Non-Stress Test (NST) — If Indicated — A non-stress test may be ordered if you have risk factors such as gestational diabetes, high blood pressure, decreased fetal movement, or if you are over 35. During the NST, two monitors are placed on your belly — one tracks the baby's heart rate and the other detects contractions. The test typically lasts 20-40 minutes. A "reactive" (normal) result means the baby's heart rate accelerates appropriately with movement, indicating good health.
  • Fetal Position Check — Your doctor will palpate your abdomen to confirm the baby's position. By 34 weeks, the majority of babies are head-down. If the baby is still breech, your doctor may begin discussing options such as external cephalic version (ECV) or planned cesarean delivery.
  • Blood Pressure and Weight — Continued blood pressure monitoring is especially important at this stage. Your doctor will also review your total weight gain and ensure it is within the recommended range for your BMI.
  • Fundal Height Measurement — Routine measurement. Consistent growth along the expected curve is reassuring.
  • Fetal Heart Rate (Doppler) — Listening to the baby's heartbeat with Doppler. The heart rate should remain between 110-160 beats per minute.
  • Urinalysis — Routine urine screening for protein and glucose. Your doctor is watching closely for signs of preeclampsia.

How to prepare

  • Bring your written birth plan or a list of preferences to discuss with your doctor.
  • Continue monitoring kick counts daily and note any changes in your baby's movement patterns.
  • If you are experiencing Braxton Hicks contractions, track their frequency to distinguish them from true preterm labor.
  • Ask your doctor about when to go to the hospital — learn the difference between false labor and true labor.

Tips

  • Babies born at 34 weeks and beyond generally do very well, but every additional week in the womb is beneficial. If you notice signs of preterm labor (regular contractions, leaking fluid, pelvic pressure), contact your doctor right away.
  • Braxton Hicks contractions are common and are not a sign of labor. They are irregular, do not increase in intensity, and usually stop when you change position or rest.
  • This is a good time to pre-register at the hospital where you plan to deliver. Having your paperwork done in advance saves time when you arrive in labor.
  • Start stocking up on newborn essentials: diapers, wipes, onesies, burp cloths, and a properly installed car seat. Many fire stations and hospitals offer free car seat inspections.

GBS Screening

Visit 8 · Weeks 35–36

Group B Strep (GBS) culture, cervical check, weekly visits begin

Good to know: The GBS screening at 35-37 weeks is a critical test. About 1 in 4 women carry Group B Strep bacteria without any symptoms. If you test positive, you will receive IV antibiotics (usually penicillin) during labor to prevent the bacteria from being passed to your baby during delivery. This simple intervention reduces the risk of neonatal GBS infection by over 80%. From 36 weeks onward, your visits increase to every week as you approach your due date.

Common checks

  • Group B Streptococcus (GBS) Screening — GBS screening involves a swab of the vagina and rectum to test for Group B Streptococcus bacteria. About 25% of healthy women carry GBS, which is normally harmless to the mother but can cause serious infections in newborns (such as sepsis, pneumonia, or meningitis) if transmitted during delivery. The test is quick and only mildly uncomfortable. Results take 1-3 days.
  • Cervical Exam (Optional) — Your doctor may begin offering cervical checks to assess dilation (opening), effacement (thinning), and station (how low the baby's head is). Cervical exams are optional — they can tell you if your body is preparing for labor, but they cannot predict exactly when labor will begin. Some women are dilated for weeks before labor, while others go from 0 to fully dilated once labor starts.
  • Non-Stress Test (NST) — If Indicated — If you have any pregnancy complications or are over 35, your doctor may begin weekly non-stress tests. This painless monitor tracks the baby's heart rate response to movement, ensuring the baby is doing well.
  • Blood Pressure and Weight — Blood pressure monitoring is critical at this stage. Any elevation could indicate developing preeclampsia. Report headaches, vision changes, or upper abdominal pain immediately.
  • Fundal Height Measurement — Routine measurement. As the baby drops lower into the pelvis ("lightening"), the fundal height may decrease slightly.
  • Fetal Heart Rate (Doppler) — Routine heart rate check. A strong, regular heartbeat is reassuring.
  • Urinalysis — Routine urine test for protein, glucose, and signs of infection. This becomes especially important as you near delivery.

How to prepare

  • The GBS swab is simple and does not require any special preparation. Do not douche or use vaginal products before the test.
  • Decide whether you want cervical checks at this point — they are entirely optional and not medically necessary.
  • Have your hospital bag packed and ready to go. Many women go into labor between 37-40 weeks.
  • Confirm your plan for getting to the hospital, including backup transportation and childcare plans for other children.
  • Install your infant car seat and have it inspected — you cannot leave the hospital without one.

Tips

  • Testing positive for GBS does not mean you are sick or that anything is wrong. It simply means you carry the bacteria and will need antibiotics during labor. You can still have a vaginal delivery.
  • If you are GBS-positive and your water breaks before labor begins, head to the hospital promptly so antibiotics can be started early.
  • Cervical dilation before labor is common but not a reliable predictor. Being 2 cm dilated at 36 weeks does not mean labor is imminent — you could stay that way for weeks.
  • Practice the route to the hospital at different times of day. Know where to park and which entrance to use for labor and delivery.

Full-Term — Weekly Visit

Visit 9 · Week 37

Full-term milestone, weekly monitoring, labor signs review

Good to know: Congratulations — your baby is now considered full-term! A baby born at 37 weeks or later is classified as early term (37-38 weeks), full term (39-40 weeks), late term (41 weeks), or post-term (42+ weeks). ACOG considers 39-40 weeks to be the ideal time for delivery when possible, as the baby's brain and lungs undergo important final development during these last weeks. Unless there is a medical reason, elective induction or cesarean is not recommended before 39 weeks.

Common checks

  • Cervical Exam (Optional) — If you consent, your doctor will check your cervix for dilation, effacement, and the baby's station. While this information is interesting, it is not a reliable predictor of when labor will start. Many providers will offer it at each weekly visit from this point forward.
  • Fetal Position Confirmation — Your doctor will confirm that the baby is head-down (vertex presentation). At 37 weeks, the baby's position is unlikely to change. If the baby is still breech, your doctor will discuss whether external cephalic version (ECV) is appropriate or whether a planned cesarean is recommended.
  • Non-Stress Test (NST) — If Indicated — Non-stress testing may continue weekly for women with risk factors. The 20-minute monitor tracks the baby's heart rate patterns and any contractions to ensure the baby is thriving.
  • Blood Pressure and Weight — Weekly blood pressure checks help detect late-onset preeclampsia. Some women notice their weight gain plateaus or even decreases slightly near term — this is normal.
  • Fundal Height Measurement — Routine measurement. A drop in fundal height can indicate the baby has "dropped" into the pelvis in preparation for labor.
  • Fetal Heart Rate (Doppler) — Routine Doppler to check the baby's heartbeat and ensure everything is normal.
  • Urinalysis — Standard urine screening for protein and glucose, watching for signs of preeclampsia or infection.

How to prepare

  • Keep your hospital bag by the door, ready to grab at a moment's notice.
  • Know the signs of labor: regular contractions that get closer together, stronger, and longer; rupture of membranes (water breaking); and bloody show (mucus plug with blood).
  • Review your birth plan with your doctor and ask any remaining questions.
  • Make sure your partner and support team know the plan — who to call, where to go, what to bring.

Tips

  • If your water breaks, note the time, color (clear is normal; green or brown may indicate meconium), and amount. Call your doctor right away.
  • True labor contractions are regular, progressively stronger, and do not go away with rest or hydration. Time them: when they are consistently 5 minutes apart, lasting 1 minute each, for 1 hour (the 5-1-1 rule), head to the hospital.
  • Stay active with light walking and stretching. Keeping mobile can help the baby move into an optimal position for labor.
  • Rest when you can. Labor is a marathon, not a sprint, and going in well-rested makes a real difference.

Weekly Visit

Visit 10 · Week 38

Continued monitoring, labor readiness assessment

Good to know: At 38 weeks, your baby is almost fully mature. The lungs are producing surfactant, the brain is developing rapidly, and the baby is putting on about half a pound of fat per week. If you have gestational diabetes, hypertension, or other pregnancy complications, your doctor may begin discussing the timing and method of delivery. For uncomplicated pregnancies, the recommendation is to wait for spontaneous labor unless there is a medical reason to intervene. ACOG supports elective induction at 39 weeks for low-risk women who choose it, as studies have shown it does not increase cesarean rates.

Common checks

  • Cervical Exam (Optional) — Your doctor may check your cervical progress — dilation, effacement, and station. Any change from the previous week may suggest your body is moving toward labor, though the timeline remains unpredictable.
  • Non-Stress Test (NST) — If Indicated — Weekly NST for women with pregnancy complications or advanced maternal age, monitoring the baby's heart rate patterns and well-being.
  • Blood Pressure and Weight — Close monitoring for any late-developing preeclampsia. Report any new symptoms such as severe headaches, visual disturbances, or right upper quadrant pain.
  • Fundal Height Measurement — Routine measurement to track continued growth.
  • Fetal Heart Rate (Doppler) — Listening to the baby's heartbeat to confirm a strong, regular rhythm.
  • Urinalysis — Standard urine test at every visit, checking for protein and other abnormalities.

How to prepare

  • Continue daily kick counts. Report any notable decrease in movement to your doctor immediately.
  • Ensure your car seat is properly installed and inspected.
  • Confirm your doctor's on-call schedule and after-hours phone number.
  • Review infant CPR basics — it is an essential skill for all new parents.

Tips

  • If you are planning an epidural, know that it is available at any point during active labor. You do not need to decide in advance — you can make the call when the time comes.
  • Pack chargers, comfortable clothes, toiletries, and going-home outfits for you and baby in your hospital bag.
  • Some women experience a burst of energy ("nesting instinct") in the final weeks. While it is fine to organize and prepare, avoid overexerting yourself.
  • Stay hydrated and eat nutritious meals to maintain your energy stores for labor.

Weekly Visit

Visit 11 · Week 39

Due date approaching, induction discussion if needed, labor readiness

Good to know: At 39 weeks, your baby is considered "full term" by ACOG's definition — the ideal time for delivery. If your pregnancy has been uncomplicated and you are interested in elective induction, this is the earliest point at which ACOG supports it, based on the ARRIVE trial which showed that induction at 39 weeks for low-risk first-time mothers did not increase cesarean rates and may actually reduce the risk of preeclampsia. Discuss the pros and cons with your doctor. If you prefer to wait for spontaneous labor, that is equally valid — most babies arrive between 39 and 41 weeks.

Common checks

  • Cervical Exam (Optional) — Cervical progress is assessed if you choose. Your doctor will check dilation, effacement, and station, and use these findings along with the Bishop score to evaluate cervical readiness for labor or induction.
  • Non-Stress Test (NST) — If Indicated — Continued fetal monitoring for pregnancies with risk factors. A reactive test is reassuring that the baby is doing well.
  • Blood Pressure and Weight — Vigilant blood pressure monitoring continues. Late-onset preeclampsia can develop even at this stage.
  • Fundal Height Measurement — Routine fundal height measurement. The baby may have "dropped," leading to a slightly lower measurement.
  • Fetal Heart Rate (Doppler) — Routine check to ensure the baby's heart rate is normal and reassuring.
  • Urinalysis — Standard urine test for protein and other markers.

How to prepare

  • Keep monitoring daily kick counts. Even this close to delivery, fetal movement should remain consistent.
  • Have your hospital bags packed and in the car.
  • Confirm your childcare, pet care, and work coverage plans for when labor begins.
  • Eat well and stay hydrated. Your body needs fuel for the work ahead.

Tips

  • Only about 5% of babies are born on their actual due date. Anytime between 39-41 weeks is considered normal.
  • If you are offered a membrane sweep (stripping of membranes), know that it is a simple in-office procedure that can help stimulate labor naturally. It may cause cramping and spotting afterward.
  • Signs that labor may be near: loss of mucus plug, loose stools, increased Braxton Hicks contractions, nesting urge, and the baby dropping lower.
  • Stay calm and trust your body. Millions of women do this every day, and you are well-prepared.

Due Date Visit

Visit 12 · Week 40

Due date assessment, post-dates planning, NST, induction scheduling

Good to know: If your due date arrives and labor has not started, know that this is completely normal. About half of all babies are born after their due date. Your doctor will perform a non-stress test and possibly an ultrasound to make sure the baby and placenta are still healthy. ACOG recommends that pregnancies should generally not continue beyond 42 weeks, as the risk of stillbirth and complications increases after this point. Most providers will discuss scheduling an induction between 41 and 42 weeks if labor does not begin spontaneously. In the meantime, staying active, staying hydrated, and remaining patient are the best things you can do.

Common checks

  • Non-Stress Test (NST) — At the due date, a non-stress test is typically performed to confirm the baby is doing well. The monitor tracks the baby's heart rate over 20-40 minutes, looking for reassuring accelerations with movement. If the result is non-reactive, further testing such as a biophysical profile may be ordered.
  • Amniotic Fluid Index (AFI) Ultrasound — An ultrasound may be performed to measure the amniotic fluid level. Adequate fluid is a sign of a healthy placenta and functioning fetal kidneys. Low amniotic fluid (oligohydramnios) near or past the due date may be a reason to recommend induction, as it can indicate that the placenta is beginning to age.
  • Cervical Exam — A cervical exam assesses your readiness for labor or induction. The Bishop score evaluates cervical dilation, effacement, consistency, position, and the baby's station. A favorable Bishop score (6 or higher) suggests that induction is likely to be successful if recommended.
  • Blood Pressure and Weight — Close blood pressure monitoring continues. Any sudden rise at this stage warrants immediate attention.
  • Fetal Heart Rate (Doppler) — Routine check of the baby's heart rate to confirm well-being.
  • Urinalysis — Routine urine test with attention to protein levels.

How to prepare

  • Continue daily kick counts — they remain your best at-home tool for monitoring baby's health.
  • Be prepared for the possibility of scheduling an induction. Ask about the induction process: cervical ripening agents (like Cervidil or a Foley bulb), Pitocin, and what to expect at each stage.
  • Bring your hospital bag to this appointment just in case you are sent to the hospital.
  • Mentally prepare for the final stretch. Whether labor begins today or in a week, your baby will be here very soon.

Tips

  • Going past your due date does not mean your body has "failed." Due dates are estimates, and every pregnancy has its own timeline.
  • If induction is recommended, it is not a lesser way to give birth. Induction is a safe, well-studied medical intervention that helps ensure the best outcomes for you and your baby.
  • Stay in close contact with your doctor. If you notice decreased fetal movement, leaking fluid, bleeding, or severe headaches, go to the hospital immediately.
  • Keep your spirits up — you are in the home stretch. Whether your baby arrives today or next week, you will meet them very soon. Rest, eat well, and surround yourself with support.

Sources

This overview references public guidance from:

Prenatal Care Schedules by Country