Schedule your first OB-GYN appointment as soon as you get a positive pregnancy test, ideally between 6 and 10 weeks of pregnancy. From there, you’ll follow a regular schedule of visits that becomes more frequent as your due date approaches.
Before You Conceive
If you’re planning a pregnancy, a preconception visit at least three months before you start trying gives your provider time to assess your health and address any risks. You’ll discuss your family history, current medications, chronic conditions like diabetes or asthma, and lifestyle factors such as smoking or alcohol use. Your provider will likely recommend starting a prenatal vitamin, updating immunizations, and seeing specialists for any existing health problems that could complicate pregnancy.
Even if you haven’t scheduled a preconception visit, don’t let that delay your first prenatal appointment once you’re pregnant. The earlier you begin care, the sooner potential issues can be caught.
Your First Prenatal Visit
This appointment is the longest one you’ll have throughout pregnancy. Your provider will draw blood for a set of tests called the prenatal panel, which screens for infections and conditions that could affect you or your baby. These include checks for your blood type, immunity to rubella, hepatitis, syphilis, HIV, and whether you carry the gene for cystic fibrosis. You’ll also give a urine sample and have a full pelvic exam.
Most providers order a first-trimester ultrasound to establish your due date. This is typically done with a vaginal ultrasound probe rather than the kind that goes over your belly. You’ll also be offered genetic screening to check for conditions like Down syndrome and spinal column defects. This first visit sets the baseline for everything that follows, so expect it to take longer than a typical doctor’s appointment and come prepared with questions about your medical history, medications, and any symptoms you’ve noticed.
The Standard Visit Schedule
For a low-risk pregnancy, prenatal visits follow a predictable rhythm. You’ll go once every four weeks through about the seventh month of pregnancy. Starting around week 28, visits increase to every two weeks. Then from week 36 until delivery, you’ll see your provider weekly.
That pattern adds up to roughly 12 to 14 visits over the course of a full-term pregnancy. The American College of Obstetricians and Gynecologists notes that for low-risk patients, some of these check-ins can happen through phone calls or virtual visits rather than in-person appointments. Your provider will help you decide what works best based on how your pregnancy is progressing.
Key Tests and Screenings by Trimester
The first trimester focuses on establishing your health baseline and screening for genetic conditions. Most of the blood work happens at that initial visit, and your dating ultrasound confirms how far along you are.
In the second trimester, around 18 to 22 weeks, you’ll have a detailed anatomy scan where a technician checks your baby’s organs, limbs, and growth. Later in the second trimester, you’ll do a glucose screening test. This involves drinking a sugary liquid and having your blood drawn to check for gestational diabetes, a condition where blood sugar rises during pregnancy and can cause complications if left unmanaged.
The third trimester includes a screening for group B strep, a common bacterium that’s harmless to you but can be dangerous to your baby during delivery. Your provider will also monitor your baby’s position, your blood pressure, and your overall readiness for labor at each weekly visit.
If Your Pregnancy Is High Risk
Certain conditions mean you’ll need more frequent monitoring than the standard schedule. These include carrying twins or multiples, having preexisting diabetes or high blood pressure, being over 35, or having a history of preterm labor or pregnancy complications. Your provider may add extra ultrasounds, blood tests, or specialist referrals depending on your specific situation. There’s no single “high-risk schedule” since the frequency depends entirely on what’s being monitored.
When to Call Your Provider Between Visits
Not everything can wait for your next scheduled appointment. Call your OB-GYN’s office or after-hours line if you experience any of the following:
- Vaginal bleeding that’s heavier than light spotting
- Fluid leaking from your vagina, which could mean your water has broken
- Severe belly pain that’s sharp, cramping, or getting worse
- Fever of 100.4°F or higher
- Inability to keep fluids down for 8 hours or longer
- Decreased fetal movement once you’re far enough along to feel regular kicks
If you’re less than 37 weeks pregnant and start having regular contractions, contact your provider immediately rather than waiting to see if they stop on their own. The same applies if you’re carrying multiples or have any condition that makes your pregnancy high risk.
Signs That Need Emergency Care
Some symptoms warrant going straight to a hospital rather than calling and waiting for a callback. The CDC identifies several warning signs of potentially life-threatening conditions during pregnancy:
- Sudden, severe headache that feels unlike anything you’ve experienced, especially with blurred vision or dizziness
- Vision changes such as seeing flashes of light, blind spots, or double vision
- Extreme swelling of your face or hands, to the point where you can’t bend your fingers or your eyes look puffy
- Chest pain, pressure, or a racing heartbeat
- Trouble breathing or a feeling of tightness in your chest or throat
- Fainting or passing out
- Severe swelling, redness, or pain in one leg or arm, which can signal a blood clot
These symptoms can point to conditions like preeclampsia, blood clots, or heart problems. They require immediate evaluation, not a next-day appointment.
After Delivery
Prenatal care doesn’t end at birth. Current guidelines recommend that you have some form of contact with your provider within the first three weeks after delivery, whether that’s an in-person visit, a phone call, or a virtual check-in. This early touchpoint addresses immediate recovery concerns like healing, mood changes, and breastfeeding challenges. A comprehensive postpartum visit should happen no later than 12 weeks after birth, covering everything from physical recovery to contraception planning and screening for postpartum depression.
The same emergency warning signs listed above apply after delivery too. Heavy bleeding (soaking through a pad in an hour), passing clots larger than an egg, fever, or chest pain all warrant immediate medical attention in the postpartum period.