Safety guide

Can you take a GLP-1 while pregnant or trying to conceive?

7 min read Updated August 2026 US-licensed providers

The short answer

No. GLP-1 medications are not for use in pregnancy, and weight loss is not recommended while pregnant. Semaglutide labeling directs discontinuing at least 2 months before a planned pregnancy, to account for the long half-life of semaglutide, and discontinuing when a pregnancy is recognized. If you think you may be pregnant, contact your provider now rather than finishing the pen.

What the labeling actually says

This page exists to give you the same information a good provider would, in the order you need it. The starting point is what the FDA prescribing information for the brand products says, because that is what the clinical advice is built on.

Your situation	What the labeling says	What to do
You are pregnant	Weight loss offers no benefit to a pregnant patient and may cause fetal harm. Discontinue when a pregnancy is recognized	Contact your provider today. Do not take another dose while you wait
You are planning a pregnancy	For semaglutide: discontinue at least 2 months before a planned pregnancy, to account for its long half-life	Agree a stop date with your provider, and build the 2 months into your timeline
You are trying to conceive now	Not for use in pregnancy	Stop with your provider first. Trying while on treatment is not the plan
You could become pregnant and are not planning to	Not for use in pregnancy	Use reliable contraception. On tirzepatide, check the oral contraceptive advice
You are breastfeeding	Semaglutide: no data on presence in human milk. Tirzepatide: no data on presence in animal or human milk	A decision to make with your clinician

Drawn from the FDA prescribing information for Wegovy (semaglutide) and Zepbound (tirzepatide). Labeling is updated over time, so check the current prescribing information and follow your own provider's instructions.

The 2 month rule is about how long semaglutide stays in your system, not about anything you have done. It is a planning number, and it is exactly the kind of thing that is easy to handle when you know about it early and awkward when you find out late.

If you are trying to conceive, or might be soon

Bring this up at the start of treatment rather than at the end. If a pregnancy is anywhere in your plans over the next year or two, the timeline is a legitimate part of the treatment conversation, and it is much easier to plan around than to unwind.

Build the 2 months in. For semaglutide, the labeling directs stopping at least 2 months before a planned pregnancy because of the long half-life. Work backwards from when you want to start trying.
Expect fertility to change. As weight changes, cycles can become more regular and ovulation more predictable, including for women with PCOS or a history of difficulty conceiving. A pregnancy can therefore happen sooner than expected.
Do not treat irregular cycles as contraception. This is the single most common way an unplanned pregnancy happens on treatment.
If you are on tirzepatide and take the pill, read the contraceptive advice on do GLP-1s make birth control less effective, because it applies to the first 4 weeks and to each dose increase.
Ask about the plan after you stop. Weight often changes again after stopping treatment, which is worth understanding in advance rather than as a surprise.

For what stopping and restarting looks like generally, see how long do you take a GLP-1.

Talking to your provider about this

None of this needs to be an awkward conversation, and a good clinic will raise it before you have to. Pregnancy plans are a normal part of prescribing to anyone who could become pregnant, and saying you are unsure is a complete answer.

A free consultation with a health specialist, with no obligation to buy
A US-licensed provider asks about pregnancy plans, contraception and breastfeeding before prescribing anything
Provider check-ins every four weeks, so a change in your plans can change the treatment plan
A clear route to stop treatment when you need to, rather than a subscription that is hard to pause

Compounded medications are not FDA-approved. If your circumstances change between check-ins, contact your provider rather than waiting for the next scheduled call.

Semaglutide, as low as $199/mo Prescribed by a US-licensed provider, compounded by a licensed US pharmacy, shipped free. See the full plan and what is included.

See Semaglutide

If you find out you are pregnant while on treatment

First, this is not a catastrophe and you are not the first person it has happened to. It is a reason to make a phone call today, and it is not a reason to spend the night reading worst-case forums.

Do this

Contact your provider today, or the clinician managing your pregnancy care, and tell them what you have been taking and when.
Stop taking further doses while you get advice, rather than finishing the pen or the cycle.
Book prenatal care as you normally would.
Ask about the manufacturer pregnancy exposure registries, which both the Wegovy and Zepbound labeling describe for people exposed during pregnancy.
Eat normally. Appropriate weight gain in pregnancy is expected, including for women who started at a higher weight.

Do not do this

Do not keep taking it to use up what you have paid for.
Do not decide alone that finishing the current dose is fine.
Do not diagnose the risk to your pregnancy from a search engine, ours included.
Do not continue trying to lose weight during pregnancy unless your own clinician has specifically told you to.
Do not hide it from your prenatal team. They need to know, and they have heard it before.

What about breastfeeding?

The honest answer is that the labeling reports a lack of data rather than a reassurance. For semaglutide, the Wegovy prescribing information states there are no data on the presence of semaglutide or its metabolites in human milk, the effects on the breastfed infant, or the effects on milk production, and notes that semaglutide was present in the milk of lactating rats. For tirzepatide, the Zepbound labeling states there are no data on its presence in animal or human milk.

Both labels frame it the same way: the developmental and health benefits of breastfeeding should be weighed against the mother's clinical need for the medication and any potential effects on the infant. That is a judgement for you and a clinician who knows your situation, and it is not something to settle from a page like this one.

Adequate nutrition matters while breastfeeding, and appetite suppression works against that. If you are considering treatment postpartum, raise breastfeeding explicitly at the consult rather than assuming it will come up.

Why this warning exists, and how to think about it

Two separate reasons sit behind it, and both are worth understanding rather than just complying with.

Weight loss is not a goal during pregnancy. Appropriate weight gain based on your pre-pregnancy weight is what is recommended for all pregnant patients, including those who already have overweight or obesity, because of the weight gained by maternal tissues.
The safety data in pregnancy are insufficient. Available human data are not enough to establish or exclude a drug-associated risk, and animal reproduction studies showed adverse effects. That combination is why the labeling says do not use rather than use with caution.
Semaglutide has a long half-life, which is the whole reason for the 2 month gap before a planned pregnancy. It is about clearance time, not about the medication being especially dangerous.

If you are weighing treatment now and a pregnancy later, that is a completely normal thing to bring to a consultation. See also semaglutide for women and tirzepatide for women.

Frequently asked questions

Can you take semaglutide while pregnant?

No. The labeling states that weight loss offers no benefit to a pregnant patient and may cause fetal harm, and directs discontinuing when a pregnancy is recognized. If you think you may be pregnant, contact your provider now rather than taking another dose.

How long before pregnancy should I stop semaglutide?

The Wegovy prescribing information directs discontinuing at least 2 months before a planned pregnancy, to account for the long half-life of semaglutide. Plan the stop date with your provider and work backwards from when you want to start trying.

What should I do if I get pregnant while taking a GLP-1?

Contact your provider or the clinician managing your pregnancy care today, and stop taking further doses while you get advice rather than finishing the pen. Book prenatal care as normal. Both the Wegovy and Zepbound labeling describe pregnancy exposure registries for people exposed during pregnancy.

Do GLP-1s affect fertility?

They are not fertility treatments, but weight change can make cycles more regular and ovulation more predictable for some women, including women with PCOS, so conception can become more likely than expected. That is a reason to use reliable contraception if you are not planning a pregnancy, and to plan carefully if you are.

Can you take tirzepatide while trying to conceive?

No. Tirzepatide is not for use in pregnancy and the labeling directs discontinuing when a pregnancy is recognized, so trying to conceive while on treatment is not appropriate. Agree a stop date with your provider in advance rather than deciding alone.

Can you breastfeed while taking a GLP-1?

The labeling reports no data on the presence of semaglutide in human milk or of tirzepatide in animal or human milk, and directs weighing the benefits of breastfeeding against the mother's clinical need for the medication. That makes it a decision for you and a clinician who knows your situation.

Is it safe to try to lose weight during pregnancy?

Appropriate weight gain based on your pre-pregnancy weight is what is recommended for all pregnant patients, including those who already have overweight or obesity. Weight loss during pregnancy is not the goal and should only ever be pursued if your own clinician has specifically advised it.

Can I restart a GLP-1 after pregnancy?

That is a decision for a US-licensed provider once you are no longer pregnant, and it depends on whether you are breastfeeding and on your health at the time. Raise it at a consultation rather than restarting a leftover supply on your own.

Sources

Wegovy (semaglutide) injection, Prescribing Information · U.S. Food and Drug Administration
Zepbound (tirzepatide) injection, Prescribing Information · U.S. Food and Drug Administration

This article is for general educational purposes and is not medical or legal advice. Statements have not been evaluated by the FDA, and treatments referenced are not intended to diagnose, treat, cure, or prevent any disease. Compounded medications are not FDA-approved. Individual results vary. Always consult a licensed provider before starting any treatment.