First Trimester Checklist: 12 Tests, Symptoms, and Questions for Your OB Visits

The first trimester lasts twelve weeks, and somehow it feels both endless and over in a blink. One day you're staring at a faint second line, and the next you're scheduling blood draws and wondering whether it's normal to fall asleep at 7 p.m. Here's a working checklist: which appointments happen when, the tests most practices order, the symptoms nobody warns you about, and the questions worth writing down before you walk into the exam room.

Print it, keep it on the fridge, and treat it as a starting point. Your provider's plan will be tailored to your history, and that's exactly how it should be.

Start Here: Booking Your First Visit

Call your OB or midwife's office as soon as a home test turns positive. You don't need to wait for a particular week. Many practices schedule the first appointment somewhere between 6 and 10 weeks, and some begin with a nurse intake call to collect your history before you come in person.

Have these ready for that first visit:

• The first day of your last period, as best you remember it
• A list of every medication, supplement, vitamin, and herbal tea or tincture you take
• Your insurance card and any referral paperwork
• Questions you've been saving in your phone notes
• The name of the provider who manages any chronic condition you have

Ask about the practice's policy on support people, since it varies. If you take medication for thyroid disease, blood pressure, mood, or seizures, mention it during that first call. Some prescriptions need adjusting early, and that conversation shouldn't wait until week twelve. Anything about your specific medications should come from your prescriber or pharmacist, not from a checklist.

The 12 Tests and Checks of the First Trimester

Not every practice orders every test, and some are optional. Still, this is the standard menu you're likely to see.

1. Pregnancy confirmation — a urine or blood hCG test, though many offices accept your home test result.
2. Complete blood count — checks for anemia and your platelet and white cell levels.
3. Blood type, Rh factor, and antibody screen — determines whether you'll need Rh immunoglobulin later.
4. Immunity check — typically rubella and varicella, sometimes hepatitis B.
5. Infection screening — commonly chlamydia, gonorrhea, syphilis, HIV, and hepatitis B or C.
6. Urinalysis and urine culture — catches urinary infections that often have no symptoms.
7. Thyroid function — a TSH level, since thyroid changes affect early development.
8. Dating ultrasound — usually between 7 and 10 weeks to confirm dates and see the heartbeat.
9. Nuchal translucency ultrasound — a narrow window, roughly 11 to 14 weeks.
10. Cell-free DNA screening (NIPT) — a blood draw available from about 10 weeks that screens for certain chromosomal conditions.
11. Carrier screening — a one-time blood test for conditions like cystic fibrosis, spinal muscular atrophy, and some blood disorders.
12. Pap smear if you're due — plus any baseline checks your provider recommends.

Timing matters. If you'll be traveling, moving, or switching practices, tell the scheduler early so the 11-to-14-week window doesn't slip past. Cost matters too: coverage for genetic screening varies widely depending on your insurer and the reason it's ordered. A short call to your insurance company, with test names and billing codes from the office in hand, can prevent a confusing bill down the road.

Symptoms: What's Common and What Tends to Help

Every pregnancy writes its own version of this list, but most people meet at least a few of these.

• Nausea. Eat a few crackers before you sit up in the morning, keep small snacks going through the day, and lean on protein and bland carbs. Cold foods often go down easier than hot ones. If you can't keep fluids down for a day, call your provider.
• Bone-deep fatigue. Rest without apology. The first-trimester exhaustion usually eases in the second trimester.
• Tender, swollen breasts. A supportive bra, including one for sleeping, makes a surprising difference.
• Constipation and bloating. Water, fiber, prunes, and gentle daily movement help. Ask before starting any stool softener.
• Heartburn. Smaller meals, an earlier dinner, and propping up your head at night.
• Headaches. Often tied to dehydration, low blood sugar, caffeine withdrawal, or poor sleep. Check with your provider before taking anything beyond what they've approved.
• Dizziness. Stand up slowly, keep snacks nearby, and drink more than feels necessary.
• Superpowered smell and food aversions. Cold meals, someone else cooking, and a little flexibility at dinner.
• Light spotting. Can be normal, but always worth a phone call so someone can decide whether you need to be seen.

Questions Worth Asking at Each Visit

Write them down as they occur to you, because exam rooms have a way of erasing memory. At the first appointment, ask which tests are planned today, when results arrive, and how you'll be told. Ask how to reach a provider after hours and what symptoms warrant a call rather than a wait.

At the 8-to-12-week visit, useful questions include: How does my due date look after the ultrasound? What's my plan for genetic screening, and is it covered? Which over-the-counter medicines are fine for me? Is my weight gain pattern on track? When do I schedule the next appointment, and with whom?

At any visit: Am I a candidate for anything I haven't been offered? What should I do about exercise, travel, dental work, or sex? If you don't understand an answer, ask again. That's not a difficult patient — that's an informed one.

Making the Checklist Work for You

Print a single page and tape it inside a kitchen cabinet. Write appointment dates on it as you book them, and keep a running question list on your phone so nothing gets lost between visits. Start a folder or a photo album for lab results and ultrasound images. Bring a pen, and consider bringing your partner or a friend who can take notes while you listen.

Keep the checklist flexible. If your provider adds a test or moves a date, update the page rather than worrying about the difference. It's a tool for staying organized, not a standard you can fail.

When to Call Before Your Next Appointment

Most first-trimester worries turn out fine, but some symptoms shouldn't wait for a scheduled visit: heavy bleeding with cramping, sharp one-sided pain, pain in the tip of your shoulder, a fever, vomiting you can't keep fluids down for, burning when you urinate, fainting, or vision changes. Call the office or the after-hours line. They field these calls constantly.

This is general information, not medical advice for your particular situation. Your OB, midwife, or family doctor knows your history and is the right person to answer the questions on your list. Bring them the paper. That's what it's for.

Photo: Jupilu / Pixabay