Pregnant on GLP-1: stop, who to call, and what comes next

TLDR. GLP-1 medications are contraindicated in pregnancy. If you just learned you are pregnant while on Wegovy, Zepbound, Ozempic, or compounded semaglutide: stop the medication today, contact your prescriber within 48 hours, schedule an OB visit within one week, and start prenatal vitamins. Animal data shows risk, human data is limited. The medication does not cause termination of established pregnancy in known cases; the recommendation is to discontinue and monitor. Most pregnancies that occur during GLP-1 exposure proceed normally, but the data set is small.

You just found out you are pregnant. You are on a GLP-1. This is the playbook for the next 48 hours.

Step 1: Stop the medication immediately

Do not take the next scheduled dose. Wegovy, Zepbound, Ozempic and compounded semaglutide are all contraindicated in pregnancy on every FDA label. The labels recommend discontinuation as soon as pregnancy is confirmed.

If you have been on the medication for less than two months, you may not have hit a therapeutic blood level yet. If you have been on for longer, the active drug will clear over the next 5-7 half-lives (roughly 5-7 weeks for semaglutide, 4-5 weeks for tirzepatide). The fetus will continue to be exposed to declining drug levels during that wash-out.

Step 2: Call your OB or primary care doctor today

This is not a telehealth-program question. Contact your regular OB or PCP today, not tomorrow. Tell them:

• Which GLP-1 you were on (specific brand and dose)
• The date of your last injection
• The current week of pregnancy if you know it
• Whether you have any other medical conditions or medications

The OB will schedule an early ultrasound (around 8-10 weeks) and may refer you to maternal-fetal medicine if your case is complex.

Step 3: Do not panic

Reported pregnancies on GLP-1 have proceeded to normal-outcome births in the majority of documented cases. The data is limited because the medications are not approved for use in pregnancy and the precautionary stop is the standard guidance, not because there is a known catastrophic risk profile.

The risks that have been described in animal studies include:

• Increased structural malformations at high doses (not consistently seen at human therapeutic doses)
• Fetal growth restriction in some species
• Effects on placental nutrient transfer (mechanism plausible given the drug's GI effects)

None of these are confirmed risks at human doses. The recommendation is precautionary, not panic-inducing.

Step 4: Tell your telehealth program

Email your GLP-1 telehealth program and tell them you are pregnant. They will:

• Cancel future shipments
• Pause billing
• Note pregnancy in your chart so they don't auto-renew

Most legitimate programs will pause your subscription without penalty for pregnancy. Some will offer to resume the medication after delivery and weaning if you want to continue postpartum. You don't need to make that decision today.

Step 5: Plan the postpartum question with your OB

Two questions for after delivery:

• If you breastfeed: GLP-1 medications are not recommended during lactation. Limited data. Most obesity-medicine specialists recommend completing breastfeeding before restarting.
• If you don't breastfeed or after weaning: GLP-1 can be restarted at the lowest starter dose. Re-titrate as if you were starting fresh; do not pick up at the dose you were on before pregnancy.

What about the first trimester exposure already

If you have already taken doses during the first trimester before knowing you were pregnant, that is the most common scenario for exposure. Discuss with your OB but the standard message is: the exposure has happened, the precautionary stop now minimises further exposure and most pregnancies in this category proceed normally. Your OB will schedule appropriate ultrasounds.

For background on what GLP-1 medications do mechanistically, see our PCOS and fertility timing article, which has more depth on the medication's effects relevant to conception.

Frequently asked questions

I just got a positive pregnancy test and I am on Wegovy. What do I do?

Stop the medication today. Do not take the next scheduled dose. Contact your prescriber within 48 hours. Schedule an OB visit within one week. Start prenatal vitamins. Enroll in the manufacturer pregnancy registry (Novo Nordisk for Wegovy and Ozempic, Lilly for Zepbound and Mounjaro) so your case adds to the safety data set. Most pregnancies during GLP-1 exposure proceed normally.

Will the medication harm the pregnancy?

The human data is limited. Animal studies show embryofetal toxicity at doses much higher than human therapeutic doses. Human registry data so far has not shown a clear teratogenic signal, but the data set is small. Stopping the medication promptly is the conservative and recommended approach. Your OB will monitor the pregnancy with standard early-pregnancy ultrasound and labs.

Should I terminate the pregnancy because of the exposure?

There is no medical recommendation to terminate solely because of GLP-1 exposure. The medication is not a known teratogen at the level current data supports. The decision to continue a pregnancy is yours and your OB's, based on personal and clinical considerations beyond drug exposure. Most patients in known exposure cases continued the pregnancy with normal outcomes.

Why is GLP-1 contraindicated in pregnancy?

Two reasons. Animal data shows embryofetal effects at high doses, which puts the medication in the precautionary category. Pregnancy requires increased nutrition, which the medication's appetite suppression directly works against, raising concerns about fetal growth. The FDA labels reflect both concerns.

When can I restart GLP-1 after pregnancy?

After delivery and after weaning if breastfeeding (the medication is not approved during lactation). Most patients restart 1 to 3 months postpartum if not nursing, or 6 to 12 months postpartum after weaning. The restart protocol is the same as a first start: low dose, standard titration, dietary support during the transition.