The typical prenatal visit schedule
A standard low-risk pregnancy schedule, broadly aligned with ACOG patient education materials, looks like this:
- First visit — usually 8–10 weeks. Confirms pregnancy, dating ultrasound, full history and labs, prenatal vitamin counseling.
- Every 4 weeks — through 28 weeks.
- Every 2 weeks — from 28 to 36 weeks.
- Every week — from 36 weeks until delivery.
What each visit covers (roughly, by trimester)
- First trimester — confirming pregnancy, dating, blood type and Rh, hCG, CBC, urine culture, STI screen, genetic carrier screening offered, optional first-trimester aneuploidy screen (NT + bloodwork or NIPT/cfDNA), discussion of nausea management.
- Second trimester — anatomy ultrasound at 18–22 weeks, MSAFP/quad screen if not on NIPT, glucose tolerance test at 24–28 weeks, Rh immune globulin at 28 weeks if Rh-negative.
- Third trimester — Group B strep screen at 36–37 weeks, weekly cervical checks if indicated, TDaP vaccine in late pregnancy, fetal movement counts, growth assessment.
When to see Maternal-Fetal Medicine (MFM)
MFM specialists (perinatologists) co-manage higher-risk pregnancies alongside the general OB. Reasons to be referred include:
- Age 35 or older at delivery
- Twins, triplets, or higher-order multiples
- Prior preterm birth or pregnancy loss
- Chronic medical conditions — pregestational diabetes, hypertension, autoimmune disease, cardiac disease, kidney disease
- Suspected or confirmed fetal anomaly
- Recurrent pregnancy loss
- Genetic concerns identified on screening or family history
Birth setting comparison
Where to give birth is a personal decision that should account for medical risk, hospital access, and your preferences. A neutral overview:
- Hospital — full anesthesia (epidural), neonatal intensive care, operating room available immediately for cesarean. The default in the US and the safest setting for higher-risk pregnancies.
- Free-standing or hospital-based birth center — midwife-led, less medicalized environment for low-risk pregnancies. Cesarean and emergency care require transfer to a hospital.
- Home birth — done by midwives in select low-risk situations. ACOG considers it an option for healthy patients informed of the risks, but notes the absolute risk of perinatal complications is higher than in-hospital birth. Plan for transfer logistics in advance.
None of the above replaces a conversation with your obstetric clinician about your specific risks.