When you're pregnant or breastfeeding, every pill, supplement, or over-the-counter medicine you take matters more than ever. What seemed harmless before might now affect your baby’s development, your milk supply, or your own health in ways you didn’t expect. The good news? Your OB/GYN is there to help you navigate this - but only if you come prepared. Too many people walk into appointments with vague answers like, "I take a multivitamin" or "I use ibuprofen when I need it." That’s not enough. And it’s riskier than you think.
Why Medication Talks with Your OB/GYN Aren’t Optional
The American College of Obstetricians and Gynecologists (ACOG) says every woman planning pregnancy - or already pregnant - should have a full medication review. Why? Because nearly 90% of pregnant women take at least one medication during pregnancy, according to the CDC. That includes prescription drugs, herbal teas, vitamins, and even things you think are "natural" like evening primrose oil or St. John’s Wort. Some of these can interfere with fertility, increase the chance of birth defects, or affect how your body processes nutrients. For example, taking ibuprofen in the third trimester can cause early closure of a critical blood vessel in the baby’s heart. St. John’s Wort can cut the effectiveness of birth control pills by half. And if you’re on thyroid medication like Synthroid, your dose may need to go up during pregnancy - sometimes by 30% or more - to keep both you and your baby healthy. Your OB/GYN doesn’t just check your blood pressure or listen for the baby’s heartbeat. They’re also trained to spot hidden risks in your medicine cabinet. Unlike your primary care doctor, who might review your meds once a year, OB/GYNs check them every 3 to 4 weeks if you’re on hormonal treatments - and monthly if you have a high-risk pregnancy.What You Need to Bring to Your Appointment
Don’t rely on memory. Write it all down. And don’t just list "vitamins" or "pain relievers." Be specific. Here’s what to include:- Prescription drugs: Exact name, dosage, and how often you take it. Example: "Levothyroxine 75 mcg, one tablet every morning on an empty stomach."
- Over-the-counter meds: Include brand and generic names. Example: "Advil 200 mg, one tablet every 8 hours for headaches."
- Supplements: Name the brand. Example: "Nature Made Prenatal Multi, one tablet daily."
- Herbal products: Even if you think they’re "safe," list them. This includes ginger tea, chamomile, turmeric capsules, and fish oil.
- Recreational substances: Alcohol, nicotine, cannabis - yes, even if you only use it occasionally. Your provider needs to know to assess risk.
Pro tip: Take photos of the labels on your medicine bottles. Many patients find it easier to snap a picture than to write down every detail. You can show these on your phone at the appointment.
Start this list at least 72 hours before your visit. Patients who do this cut their appointment time by 15-20 minutes and have 40% more meaningful discussion, according to data from Colorado Women’s Health. That means more time to ask questions - and less rushing through critical info.
Key Questions to Ask Your OB/GYN
Coming with a list of questions makes the conversation stronger. Here are the ones that matter most:- "Is this medication safe during pregnancy?" Especially if you’re on long-term meds for conditions like depression, asthma, or high blood pressure.
- "Are there safer alternatives?" For example, acetaminophen (Tylenol) is preferred over ibuprofen during pregnancy. If you’re using a medication with a Category D or X rating (meaning known risks), ask what else works.
- "Do I need to stop this before trying to conceive?" Some drugs, like isotretinoin (Accutane), must be stopped months before pregnancy. Others, like certain antidepressants, can be continued with monitoring.
- "How will this affect breastfeeding?" Not all meds that are safe in pregnancy are safe in lactation. Some pass into breast milk and can make the baby drowsy or affect milk supply.
- "Should I start or increase folic acid?" Dr. Laura Riley from Weill Cornell Medicine says this is one of the most important conversations. Taking 400-800 mcg daily at least one month before conception reduces neural tube defects by up to 70%.
Also ask: "What happens if I forget to take this?" and "What signs should I watch for?" These show you’re thinking ahead - and your provider will notice.
What Your OB/GYN Won’t Tell You (But Should)
Many patients assume their OB/GYN will automatically know about everything they’re taking. But that’s not true. Here are common oversights:- Herbal supplements: 65% of patients forget to mention them. St. John’s Wort, black cohosh, and dong quai can all interfere with hormones or trigger contractions.
- CBD and medical marijuana: Only 38% of OB/GYNs routinely screen for cannabis use, even though 18% of reproductive-aged women use it, according to national surveys. The long-term effects on fetal brain development aren’t fully known - but the risk isn’t zero.
- Over-the-counter creams and patches: Things like lidocaine patches for back pain or topical antifungals might seem harmless, but they can be absorbed through the skin and reach the baby.
- Supplements from Amazon or health stores: Many aren’t regulated. A 2022 study found that 1 in 5 prenatal supplements had inconsistent or missing ingredients.
Don’t be embarrassed. Your provider has heard it all. The goal isn’t judgment - it’s safety.
What Happens After the Discussion
A good OB/GYN won’t just say, "Don’t take that." They’ll help you adjust. For example:- If you’re on a blood pressure med like lisinopril (which is unsafe in pregnancy), they might switch you to nifedipine or labetalol - both well-studied and safe.
- If you’re on an antidepressant like sertraline (Zoloft), they’ll monitor you closely but likely recommend continuing it - untreated depression carries greater risks than the medication.
- If you’re using a hormonal IUD and planning pregnancy, they’ll help you time removal so you don’t lose precious months trying to conceive.
Some changes require insurance approval. Ask your provider: "Will this new medication need prior authorization?" About 62% of OB/GYN medications require it, and waiting weeks for approval can delay care.
Common Mistakes (And How to Avoid Them)
Based on patient feedback from thousands of reviews:- Mistake: "I didn’t think it counted." Solution: If you take it regularly - even once a week - list it.
- Mistake: "I stopped it because I was scared." Solution: Never stop a medication without talking to your provider. Abruptly stopping antidepressants or seizure meds can be dangerous.
- Mistake: "I forgot." Solution: Keep a running list on your phone. Update it every time you refill a prescription.
- Mistake: "I didn’t want to seem like I was questioning you." Solution: Your provider expects questions. The best patients are the ones who ask.
One patient on Reddit said she brought a spreadsheet with brand names, doses, and reasons for each med - and her OB printed it to keep in her file. That’s the kind of preparation that makes a difference.
What’s Changing in 2026
The field is evolving fast. In 2023, ACOG updated its guidelines to require explicit discussion of CBD and medical marijuana. In 2024, the FDA plans to roll out standardized pregnancy risk scores for medications - so you’ll see clearer labels like "Moderate Risk" or "Safe with Monitoring." Also, apps like Babyscripts are now helping OB/GYNs track blood pressure and medication adherence in real time for pregnant patients with hypertension. And by late 2024, ACOG will release an official patient checklist app to help you build your medication list before your visit.The bottom line? More women are entering pregnancy with chronic conditions - 58% by 2025, up from 44% in 2010. That means medication management isn’t optional anymore. It’s part of prenatal care.
Can I keep taking my antidepressants during pregnancy?
Yes, in most cases. Medications like sertraline (Zoloft) and citalopram (Celexa) are considered low-risk during pregnancy and breastfeeding. Untreated depression can lead to poor nutrition, missed appointments, or postpartum complications - so the risks of stopping often outweigh the risks of continuing. Always work with your OB/GYN and psychiatrist to monitor your dose and symptoms.
Is it safe to take ibuprofen while breastfeeding?
Ibuprofen is generally safe during breastfeeding. Only tiny amounts pass into breast milk, and it’s often recommended for postpartum pain because it doesn’t affect milk supply. Avoid long-term daily use without medical advice, and never use it during the third trimester of pregnancy.
Why do I need to tell my OB/GYN about my herbal tea?
Because not all "natural" products are safe. Chamomile and peppermint are usually fine, but herbs like black cohosh, blue cohosh, or pennyroyal can stimulate contractions and trigger early labor. Even ginger, while helpful for nausea, can thin the blood if taken in high doses. Your provider needs to know to avoid dangerous interactions.
Should I stop my birth control before trying to get pregnant?
You can stop birth control whenever you’re ready to try conceiving. Most women ovulate again within a few weeks. But if you’ve been on hormonal birth control for years, your cycle may take 1-3 months to regulate. Start taking folic acid at least one month before stopping, and schedule a preconception visit to review all your meds.
What if I took a medication before I knew I was pregnant?
Don’t panic. Most medications taken in the first few weeks of pregnancy - before you even know you’re pregnant - don’t cause harm. The embryo is either unaffected or naturally doesn’t survive if exposed to a major teratogen. The key is to tell your OB/GYN what you took, when, and how much. They’ll assess the risk and may recommend extra monitoring - but rarely, if ever, recommend termination based on early exposure alone.
Written by Mallory Blackburn
View all posts by: Mallory Blackburn