How to Prepare for and Talk to Your OB/GYN About Medications During Pregnancy and Breastfeeding

When you're planning a pregnancy or already pregnant, your OB/GYN isn’t just checking on your baby’s heartbeat-they’re also reviewing every pill, supplement, and drop you’re taking. It’s not about being judged. It’s about safety. Around 90% of pregnant women in the U.S. take at least one medication during pregnancy, according to the CDC. That includes things you might not think of as "medications"-like herbal teas, fish oil, or even that daily vitamin with extra iron. But here’s the truth: what you take matters just as much as what you eat. And if you don’t come prepared, you risk missing out on critical advice-or worse, accidentally using something that could harm your baby.

Why This Conversation Can’t Wait

Your OB/GYN doesn’t just want to know what you’re taking. They need to know exactly what you’re taking. A simple "I take a multivitamin" isn’t enough. Why? Because not all prenatal vitamins are the same. Some have high doses of vitamin A, which can be dangerous in early pregnancy. Others might include herbs like dong quai or black cohosh-plants that can trigger contractions. Even something as common as ibuprofen can be risky after 20 weeks. The American College of Obstetricians and Gynecologists (ACOG) says all medications, including over-the-counter ones and supplements, must be reviewed during prepregnancy counseling. That’s not a suggestion. It’s a standard.

And it’s not just about pregnancy. If you’re breastfeeding, the same rules apply. Medications don’t disappear after birth. They pass into breast milk. Some are safe. Others aren’t. A 2022 study found that 68% of women continue taking medications for chronic conditions like thyroid disease, depression, or high blood pressure during breastfeeding. But without clear guidance, many women stop their meds out of fear-putting their own health at risk.

What to Bring to Your Appointment

You don’t need to memorize everything. Just write it down. Start at least 72 hours before your appointment. Here’s what to include:

• Prescription drugs: Exact name, dose, how often, and why you take it. Example: Levothyroxine 75 mcg, one pill daily for hypothyroidism.
• Over-the-counter (OTC) meds: Ibuprofen, acetaminophen, antacids, sleep aids, cold pills. Don’t skip these. Many women think "natural" means safe. It doesn’t.
• Supplements: Prenatal vitamins, iron, calcium, omega-3s, vitamin D, magnesium. Include brand names. Some brands have hidden ingredients.
• Herbal products: Chamomile tea, ginger capsules, St. John’s Wort, evening primrose oil. Yes, even tea counts. St. John’s Wort can cut the effectiveness of birth control by half. Evening primrose oil has been linked to early labor.
• Recreational substances: Alcohol, nicotine, cannabis. These are hard to talk about-but your OB/GYN needs to know. If you use medical marijuana, they need to know the strain and dosage. The FDA and ACOG now require providers to screen for cannabis use during pregnancy. Only 38% of OB/GYNs do it regularly, but you shouldn’t wait for them to ask.

Pro tip: Take photos of your medicine bottles with your phone. That way, if you forget a name or dose, you’ve got a visual backup. One patient on Reddit shared that her OB/GYN printed her spreadsheet of supplements and kept it in her file. That’s the kind of prep that makes a difference.

Key Questions to Ask

Don’t wait until the last five minutes of your appointment to ask. Bring your list and these questions:

• "Is this medication safe during pregnancy and breastfeeding?" Especially if you’ve been taking it for years. Some meds, like certain antidepressants or blood pressure drugs, are safe. Others aren’t.
• "What’s the safest alternative if this isn’t recommended?" For example, if you take ibuprofen for headaches, ask about acetaminophen. If you’re on a statin for cholesterol, find out if it’s safe to pause until after delivery.
• "Do I need to stop this before trying to conceive?" Some medications, like acne treatments (Accutane) or certain arthritis drugs, require a waiting period of months before pregnancy.
• "Will this affect my fertility?" Even if you’re not trying right now, knowing how a medication impacts ovulation or sperm health matters.
• "Is there a pregnancy registry for this drug?" Some medications have tracking programs where women report outcomes. It helps future moms get better data.

One thing most women don’t ask: "What happens if I don’t take this?" For example, if you’re on thyroid medication and stop because you’re scared, your baby could face developmental delays. The risks of stopping often outweigh the risks of continuing.

What Your OB/GYN Isn’t Telling You (But Should)

Here’s the uncomfortable truth: OB/GYNs are experts in reproductive health, not pharmacology. They know which drugs are teratogenic (harmful to a developing baby). But when you’re on five or more medications-for diabetes, asthma, depression, autoimmune disease-they may not have all the answers. That’s why they refer complex cases to women’s health pharmacists. About 65% of OB/GYNs do this when patients take four or more drugs. Don’t be surprised if they say, "Let me get you in touch with a specialist." It’s not a dismissal. It’s care.

Also, don’t assume your OB/GYN knows about the latest updates. In July 2023, ACOG expanded its guidelines to include detailed discussions about CBD and medical marijuana. Many clinics are still catching up. If you use cannabis for pain or anxiety, bring up the topic yourself. Don’t wait for them to ask.

Common Mistakes and How to Avoid Them

• Mistake: "I didn’t think it counted." Solution: If it’s not food, assume it’s a medication. Even your daily ginger tea or turmeric capsule.
• Mistake: "I forgot to mention my supplement." Solution: Keep your list on your phone. Review it every Monday morning.
• Mistake: "I stopped my meds because I was scared." Solution: Talk first. Don’t guess. Stopping thyroid meds, antidepressants, or blood pressure drugs without guidance can be more dangerous than the medication itself.
• Mistake: "My doctor didn’t ask." Solution: You’re in charge of your health. If they don’t bring it up, bring it up yourself.

One patient on Healthgrades wrote: "I forgot to mention evening primrose oil. My OB was frustrated. I didn’t know it could induce labor." That’s the kind of mistake that’s easy to avoid with a simple list.

What Happens After the Appointment

After your medication review, you should walk away with:

• A clear list of what to keep, stop, or switch.
• Timeline for changes (e.g., "Stop this 3 months before trying to conceive.")
• Names of safe alternatives.
• Follow-up instructions (e.g., "We’ll check your TSH every 12 weeks.")

Some clinics now use apps like Babyscripts to monitor blood pressure or medication adherence in real time. If yours doesn’t, ask. Technology is making this easier. In 2023, 89% of accredited OB/GYN practices had formal medication review protocols. You deserve that level of care.

Final Thoughts

This isn’t about being perfect. It’s about being honest. Your OB/GYN has seen it all-meds, herbs, oils, vapes, and everything in between. They’re not here to judge. They’re here to protect you and your baby. The more you prepare, the more time you’ll have to talk about what really matters: how to have a healthy pregnancy, a safe delivery, and a strong start to breastfeeding.

Start today. Grab your pill bottles. Open your notes app. Write it all down. Bring it to your next appointment. It’s one of the most powerful things you can do for your future child.

Next Steps

• If you’re planning pregnancy: Schedule a preconception visit. Bring your full medication list. Ask about folic acid, thyroid checks, and vaccinations.
• If you’re already pregnant: Review your meds at your next OB/GYN appointment. Don’t wait. Bring your phone photos of pill bottles.
• If you’re breastfeeding: Ask which of your meds are safe. Use resources like LactMed (from the NIH) to double-check, but always confirm with your provider.

Every medication you take during pregnancy or breastfeeding is a conversation. Don’t leave it to chance. Prepare. Ask. Speak up. Your baby’s health depends on it.