Is it safe to take Wegovy while pregnant?

Why is Wegovy not recommended in pregnancy?

Wegovy contains semaglutide, a GLP-1 receptor agonist that works partly by slowing gastric emptying and reducing appetite. During pregnancy, adequate nutrition and caloric intake are essential for foetal development, and any medicine that meaningfully suppresses appetite carries an inherent concern in that context. The NHS patient information for semaglutide is explicit: do not use semaglutide if you are pregnant, and stop treatment if you become pregnant.

The preclinical picture adds weight to this guidance. Animal studies conducted during Wegovy's development found evidence of foetal harm, including reduced foetal weight and skeletal abnormalities, at exposures in the range of the human therapeutic dose. Human data are limited, largely because pregnant women are routinely excluded from clinical trials. What that means practically is that the absence of large-scale evidence in humans is not reassurance — it is uncertainty, and clinical guidance responds to uncertainty by recommending avoidance.

The Wegovy prescribing information specifies that women of childbearing potential should use effective contraception during treatment. The NHS England guidance on weight-management injections also notes that, for tirzepatide specifically, women on oral contraceptives may need an additional barrier method during the early titration period — a subtlety worth raising with your prescriber if you are considering switching between weight-loss medicines.

What should you do if you become pregnant while taking Wegovy?

Stop Wegovy as soon as you find out you are pregnant. Do not wait for your next scheduled dose or your next clinic appointment. Contact your GP or midwife the same day if at all possible, in the same way you would if you discovered any prescribed medicine might carry a risk in early pregnancy.

Your clinical team will want to know how far along you are, how long you were on Wegovy, and what dose you had reached. That information helps them assess whether any additional monitoring is appropriate. If you are researching whether you can use Wegovy while pregnant, the short answer from all current clinical guidance is that you should not, and stopping promptly is the right step. There is no evidence that a single missed dose of semaglutide at the point of stopping will cause harm, but the sooner you flag the situation, the better placed your team is to support you.

If you are currently taking Wegovy through a private service and you are not sure who to contact, our prescribers are available for aftercare queries seven days a week via our contact page. We will always direct you to the right clinical pathway, including onward referral to your GP or maternity team where that is appropriate.

If you have general questions about the treatment outside of a pregnancy concern, our frequently asked questions page covers the most common ones.

Can you restart Wegovy after pregnancy or breastfeeding?

Wegovy is also not recommended during breastfeeding. Semaglutide is present in animal milk at concentrations that could meaningfully expose a nursing infant, and the clinical consensus is that this risk is not worth taking when alternative feeding arrangements or weight management strategies are available.

Once you have finished breastfeeding and your GP confirms it is appropriate to consider weight management medication again, the conversation about whether Wegovy or another licensed treatment suits your situation can restart from scratch. Weight-loss medicines are prescription-only, and your prescriber will assess your health as it stands at that point, not simply reactivate a previous plan.

There is no fixed minimum waiting period between finishing breastfeeding and restarting semaglutide in the published guidance, the timing is a clinical decision based on your individual circumstances. Many people also ask whether it is safe to take Wegovy while pregnant, and the answer from prescribing guidance is consistently no, which is why planning ahead matters so much. The question of Wegovy and pregnancy planning more broadly is worth discussing in advance with your GP if you are thinking about a future pregnancy while currently on treatment. Planning ahead gives you time to discuss stopping the medicine, consider wash-out timing, and explore how to manage weight healthily in the interim.

You can find a broader overview of how Wegovy works and what it is licensed for in the UK on our Wegovy information page.

What weight management support is available if you are pregnant or planning to conceive?

Pregnancy is a period when weight management advice does not go away, but the tools change significantly. GLP-1 medicines are off the table. Orlistat is also not recommended in pregnancy. What remains are diet, activity guided by a midwife or dietitian, and in some circumstances referral to a specialist weight management service, all of which are considerably safer in this context than any pharmacological option.

If you have obesity and are planning a pregnancy, it is worth raising the topic with your GP before you try to conceive. They can help you set a realistic weight goal for before conception, which reduces the risk of gestational diabetes, hypertension, and complications during labour. For anyone weighing up the risks and wondering about Wegovy and being pregnant, it is important to understand that the guidance applies both to continuing an existing prescription and to starting a new one during pregnancy. The NHS guidance on obesity treatment outlines the non-pharmacological options that remain available and are relevant here.

For women who want to revisit medical weight management after their pregnancy journey is complete, our free consultation is the starting point. A GPhC-registered prescriber reads your health information personally and will discuss which licensed treatment, if any, is appropriate at that stage. Questions about whether semaglutide can be taken while pregnant are among the most common we receive, and the answer is the same as for Wegovy, since semaglutide is the active ingredient in both. There is no pressure, and the consultation itself costs nothing. It is the kind of conversation worth having when you are ready, not rushed into before you are.