An OB intake appointment is the longest and most thorough prenatal visit you’ll have during your entire pregnancy. It typically lasts 45 minutes to an hour and covers your full medical history, a physical exam, blood work, and a conversation about what to expect in the months ahead. Most practices schedule this visit sometime between 6 and 10 weeks of pregnancy, though you should call to book it as soon as you get a positive test.
Here’s a detailed walkthrough so you know exactly what to expect.
A Deep Dive Into Your Health History
The appointment usually starts with paperwork, either filled out in the waiting room or sent to you digitally beforehand. Expect questions about your overall health, any chronic conditions, past surgeries, and every medication, supplement, or vitamin you currently take. Your provider needs this information to flag anything that could affect your pregnancy early on.
You’ll also be asked about your reproductive history: previous pregnancies, miscarriages, how those deliveries went, and any complications. If this is your first pregnancy, the conversation will focus more on your menstrual cycle, specifically the first day of your last period, since that’s the starting point for calculating your due date. Be as accurate as you can, but don’t stress if you’re unsure. An early ultrasound can fill in the gaps.
Family history matters here too. Your provider will ask whether you, your partner, or close relatives have a history of genetic disorders, birth defects, diabetes, high blood pressure, or other heritable conditions. This helps determine what additional screening you might be offered later. You’ll also be asked directly about smoking, alcohol use, drug use, and your exercise habits. These questions aren’t meant to judge you. They’re standard for every patient and help your care team tailor advice to your situation.
The Physical Exam
Your vitals come first: blood pressure, heart rate, height, and weight. Your provider uses your height and weight to calculate your BMI, which helps guide recommendations for healthy weight gain throughout pregnancy. Blood pressure is especially important because it establishes a baseline. If your numbers rise later in pregnancy, your provider needs to know where you started.
A full pelvic exam is common at the intake visit. This includes an external exam and a look at your cervix using a speculum, similar to what happens during a routine gynecological visit. If you’re due for a Pap smear (or haven’t had one recently), your provider will likely do one now along with swabs to check for infections. Your abdomen may also be checked, and your provider will look at your legs and feet for any swelling, which is another useful baseline for later in pregnancy.
Blood Tests and Lab Work
Plan on giving several vials of blood. The standard prenatal blood panel covers a lot of ground in one draw:
- Blood type and Rh factor. Your blood type is recorded, and your Rh status (a protein on the surface of red blood cells) is checked. If you’re Rh-negative and the baby is Rh-positive, you’ll need a simple injection later in pregnancy to prevent complications.
- Complete blood count. This checks for anemia and gives an overall picture of your blood health.
- Immunity checks. Your blood is tested for immunity to rubella (German measles) and chickenpox, unless you have documented proof of vaccination.
- Infectious disease screening. Hepatitis B, syphilis, gonorrhea, chlamydia, and HIV are all screened. HIV testing is a routine part of prenatal care for all patients and uses an opt-out approach, meaning it’s done automatically unless you specifically decline.
You’ll also likely give a urine sample. Urine tests at prenatal visits check for signs of urinary tract infections, protein (which can signal kidney issues), and glucose levels.
Calculating Your Due Date
Your provider will estimate your due date using the first day of your last menstrual period, counting forward 280 days. This method assumes a 28-day cycle with ovulation on day 14, which doesn’t apply to everyone. If your cycles are irregular or you’re not sure of the date, an early ultrasound becomes especially important.
A first-trimester ultrasound, done before 14 weeks, is the most accurate way to confirm or adjust your due date. ACOG guidelines note that if the ultrasound measurement and your period-based date differ by more than five days (before 9 weeks), the ultrasound date takes priority. Some practices perform the ultrasound at the intake appointment itself, while others schedule it as a separate visit within the same week or two. If your pregnancy resulted from IVF, your due date is calculated from the embryo transfer date rather than a menstrual period.
Mental Health Screening
You’ll likely be handed a short questionnaire asking about your mood, anxiety levels, and emotional well-being. ACOG recommends screening for depression and anxiety at the very first prenatal visit using a standardized tool. The two most common are the Edinburgh Postnatal Depression Scale and the Patient Health Questionnaire (PHQ-9). Some practices use a combined screener that also checks for anxiety disorders and PTSD symptoms.
These screenings aren’t just for people with a known history of mental health conditions. Perinatal mood disorders can develop in anyone, and catching early warning signs means support can start sooner rather than later. Answer honestly, even if it feels uncomfortable.
Genetic Screening Options
Your intake visit is when your provider first discusses genetic testing. There are two main categories to understand.
Carrier screening checks whether you carry a gene for certain inherited conditions, even if you don’t have the condition yourself. All pregnant patients are offered carrier screening for cystic fibrosis, sickle cell disease, and spinal muscular atrophy at minimum. Expanded panels can test for dozens of additional conditions, including Tay-Sachs disease and fragile X syndrome. If you and your partner are both carriers for the same condition, there’s a chance your baby could be affected, and your provider will walk you through what that means.
The other category is prenatal screening for chromosome differences in the baby, such as Down syndrome. Cell-free DNA testing (sometimes called NIPT) can be done as early as 10 weeks by analyzing tiny fragments of the baby’s DNA circulating in your blood. Your provider will explain the options and help you decide what, if any, screening you’d like. None of it is mandatory.
Medication and Supplement Review
Your provider will go through every medication you’re currently taking and assess whether it’s safe to continue during pregnancy. Some common medications for conditions like acne, migraines, or mood disorders aren’t recommended during certain stages of pregnancy, and your provider may suggest alternatives. This includes over-the-counter drugs and herbal supplements, not just prescriptions.
If you’re not already taking a prenatal vitamin with folic acid, you’ll be told to start immediately. Folic acid is critical for early fetal development, particularly in the first trimester when the baby’s neural tube is forming.
Lifestyle Guidance
Expect a conversation about day-to-day habits. On exercise, the general recommendation is 30 minutes of moderate activity (like brisk walking) five days a week, both before and throughout pregnancy. How much you can do depends on your fitness level before pregnancy and any complications your provider identifies.
Caffeine typically comes up. The general guidance is to keep intake moderate, roughly under two cups of coffee per day. Higher consumption has been linked to increased miscarriage risk. You’ll also get dietary guidance: eat fish for its nutritional benefits but limit it to about three 4-ounce servings per week, avoid high-mercury fish like shark and tilefish, and cap white tuna at one can or steak per week. Soft cheeses made from unpasteurized milk, raw or undercooked meat, and deli meats are usually flagged as foods to avoid due to infection risk.
What to Bring and How to Prepare
A few things will make your intake appointment run more smoothly. Bring a list of all medications and supplements you take, including dosages. Know the first day of your last menstrual period if possible. If you have records from previous pregnancies, especially if they were with a different provider, bring those or have them transferred ahead of time. Write down any family history of genetic conditions on both sides.
Most importantly, bring your questions. This is the visit where your provider has the most time carved out for conversation. Whether you want to ask about travel plans, specific foods, exercise restrictions, or what the rest of your prenatal visit schedule looks like, this is the best opportunity to get thorough answers. After this appointment, most routine visits will be much shorter, around 15 to 20 minutes, until late in your third trimester.