You've Got Pregnant on Wegovy — here's what matters now

You've just seen a positive test, what to do in the next 24 hours

The moment you find out you are pregnant, put the pen down. Do not wait until your next scheduled injection and do not taper the dose. Simply stop. That is not alarmist advice, it is the consistent position of the Wegovy prescribing information, the NHS, and every prescriber who has reviewed this situation. Semaglutide has a half-life of approximately one week, so it will clear your system gradually after the last injection, but stopping immediately limits any further exposure during the earliest and most sensitive weeks of development.

The next call is to your GP or midwife, ideally that same day or the following morning. Let them know you were on Wegovy for weight management and the approximate date of your last injection. They will arrange a dating scan and booking appointment in the usual way, and they can flag your notes so your maternity team is aware. If you used an online service to obtain your prescription, contacting that pharmacy to close your prescription is also sensible, for nume customers, our aftercare team is available seven days a week via the contact page.

There is no need to panic. Unplanned pregnancies on GLP-1 medicines do happen, partly because the medicines can affect absorption of oral contraceptives. Our guide on conception and Wegovy covers the contraception interaction in detail if that context is helpful.

What the evidence actually says about semaglutide and early pregnancy

The honest answer is that human data is very limited, because pregnant women are excluded from clinical trials as standard. What researchers do have comes from animal studies conducted during the regulatory approval process, and those studies did find effects on foetal development at doses relevant to the treatment range. The European and UK regulators both classified semaglutide as not recommended in pregnancy on that basis, the absence of reassuring human data, combined with signals in animal models, is enough to advise against it.

That said, an accidental exposure early in pregnancy is a different question from deliberately continuing treatment. Many women have discovered a pregnancy after a small number of injections and gone on to have straightforward pregnancies. No large registry of outcomes exists yet, so clinicians cannot give a precise risk figure. What they can do (and what your GP or obstetrician will do) is monitor the pregnancy carefully and answer questions based on the best available information at the time. The NHS England guidance on weight-management injections is equally clear that these medicines should be stopped if pregnancy is confirmed.

If you have specific concerns about the timing of your last injection and what it might mean for your pregnancy, that conversation belongs with a doctor who can review your full medical history. Our page for people who conceived while taking semaglutide goes into more detail on the clinical questions that commonly come up.

Weight management during pregnancy, and what comes after

Stopping Wegovy does not mean stopping all support. Pregnancy changes what is appropriate, but managing weight through diet and activity remains important, particularly for women who were using Wegovy because of a weight-related health condition. Your midwife and obstetric team are the right people to guide that: NHS maternity care includes nutritional advice, and some areas offer specialist support for women with higher BMIs. This is genuinely worth asking about at your booking appointment, rather than leaving until later.

Breastfeeding is also a period when Wegovy is not recommended, and if you want a fuller picture of the safety considerations, our guide covering Wegovy and pregnancy sets out what is currently known in one place. Animal studies showed semaglutide passes into breast milk, and the effect on a nursing infant is unknown. The practical upshot is that treatment is paused for the duration of pregnancy and for as long as you breastfeed, for some people that is six months, for others much longer. There is no fixed rule; the decision about when it might be appropriate to restart is one for a prescriber once you have weaned, taking into account how your weight and health have changed in the interim.

When that conversation does happen, Wegovy's treatment page gives a clear overview of how the medicine works and what a private consultation involves. Restarting after pregnancy is treated as a new clinical assessment, previous approval does not carry over automatically, and a prescriber will want to understand your current health picture before recommending a dose. If you are exploring your options more broadly, the weight-loss treatments page covers everything available through nume and how to begin.

One practical note: if you were partway through a prescription when you discovered you were pregnant and you want to understand more about continuing or stopping Wegovy while pregnant, our dedicated page walks through the clinical reasoning in plain language. If you ordered before the 12pm cut-off on a weekday, contact us before dispatch rather than after, it is easier to pause a shipment than to return one. Women who are further along and want to understand the guidance that applies at each stage of pregnancy can also find that detail on our page about using Wegovy when pregnant, which covers the questions that most commonly come up trimester by trimester.