This guide sets out what the SmPC says about Wegovy and pregnancy, what to do if you conceive while taking it, how far in advance to stop before trying, and how contraception fits in. It draws on the UK Summary of Product Characteristics and the NHS. It is general information, and any decision about pregnancy while on Wegovy should be made with your prescriber.
Can you take Wegovy in pregnancy?
No. The SmPC is clear that Wegovy should not be used during pregnancy1. There are limited data from its use in pregnant women, and animal studies have shown reproductive toxicity, so the position is that it is not used while pregnant 1.
This applies to the whole point of treatment: Wegovy is for weight management, which is not a goal pursued during pregnancy, and the safety data needed to support its use in pregnancy is not there 1. So pregnancy and Wegovy do not go together.
The practical focus, therefore, is on two things: avoiding an unintended pregnancy while on the medicine, and stopping in good time before a planned one, both of which the sections below cover 1.
It is also worth saying that this is not a reason for alarm if you have been taking Wegovy and pregnancy was not planned; it is a reason to act promptly and get advice, which the guidance below sets out 13. The position is a precaution based on limited human data rather than evidence of a specific harm, and the safe response, stopping and speaking to your doctor, is straightforward 13.
What the SmPC says
The SmPC's pregnancy statement is specific. It says studies in animals have shown reproductive toxicity, that there are limited data from use in pregnant women, and that semaglutide should not be used during pregnancy1. It adds that if a patient wishes to become pregnant, or pregnancy occurs, semaglutide should be discontinued1.
It also gives a clear timing rule: because of the long half-life, semaglutide should be discontinued at least two months before a planned pregnancy1. That two-month lead time is the key practical figure for anyone planning to conceive.
On fertility itself, the SmPC states that the effect of semaglutide on fertility in humans is unknown1. So, as with the related medicines, this guide does not claim it improves or reduces fertility; the clear guidance is about pregnancy and contraception 1.
It is worth being clear about what the guide deliberately avoids here. Weight loss is sometimes discussed in connection with fertility, but the SmPC does not support a claim that Wegovy boosts fertility, and the human fertility effect is stated as unknown, so no such claim is made 1. Equally, nothing in the licence indicates it harms fertility 1. Holding that honest uncertainty about fertility, while acting firmly on the clear rules about pregnancy and contraception, is the right way to read the SmPC 1.
What to do if you conceive while taking Wegovy
If you become pregnant while taking Wegovy, the SmPC's instruction is direct: it should be discontinued1. The practical step is to stop the medicine and tell your doctor promptly, so your care can be managed appropriately 13.
Discovering a pregnancy on the medicine is understandably worrying, but the action is straightforward, stop and seek advice, and this is exactly the kind of situation your prescriber is there to help with 13. They can advise on next steps for both the pregnancy and your weight management 3.
What you should not do is continue the medicine into a known pregnancy or try to manage the situation alone 1. Stopping and getting prompt advice is the safe response 13.
It is natural to worry about doses already taken before you knew you were pregnant, but that is exactly the kind of thing your doctor can talk through with you, and the constructive step is to stop now and seek advice rather than to dwell on what has already happened 13. Your prescriber and maternity team can then look after both the pregnancy and your wider health from there 3.
Considering treatment for weight management? You can start an assessment with a Cloud Pharmacy clinician, who will review your medical history and confirm whether treatment is appropriate.
Planning a pregnancy: stop at least two months before
If you are planning to conceive, the SmPC rule is to discontinue Wegovy at least two months before a planned pregnancy, because semaglutide stays in the body a long time owing to its long half-life 1. That lead time lets the medicine clear before you start trying.
So planning a pregnancy on Wegovy means planning the stop in advance, with that two-month window built in 1. This is a decision to make with your prescriber, who can advise on stopping and on timing, rather than stopping abruptly and trying immediately 13.
If you are weighing up treatment and know you may want to conceive in the near future, it is worth raising at the outset, so the plan fits around your intentions from the start 13. Our guide comparing Wegovy and how it works covers the wider picture of the medicine.
The two-month figure is specific to semaglutide and longer than the one-month lead time advised for some other GLP-1 medicines, so it is worth noting the difference if you have read about a different drug 1. The reason is the medicine's long half-life, and building that fuller two-month window in is the safe way to move from treatment towards trying to conceive 1.
Contraception while on Wegovy
Because Wegovy must not be used in pregnancy, the SmPC advises that women of childbearing potential use contraception while being treated with semaglutide 1. Reliable contraception is the practical safeguard against an unintended pregnancy on the medicine 1.
There is an important and reassuring difference from some other GLP-1 medicines here. The SmPC states that semaglutide is not anticipated to decrease the effectiveness of oral contraceptives, because it did not change the overall exposure of the pill's hormones to a clinically relevant degree 2. So, unlike medicines that advise an extra barrier method with the pill, semaglutide is not expected to reduce how well the pill works 2.
That said, the overarching advice still stands: use contraception while on Wegovy if there is any chance you could become pregnant, and discuss your method with your prescriber, particularly given the importance of avoiding pregnancy on the medicine 12.
This is a genuinely useful distinction to understand, because advice written for one GLP-1 medicine does not always transfer to another 2. Some medicines in this area advise adding a barrier method or switching away from the pill for a period when starting or increasing the dose, specifically because they can reduce the pill's absorption 2. The Wegovy SmPC does not give that instruction, because semaglutide is not anticipated to affect the pill in that way, so if you use the pill reliably it is not expected to be made less effective by Wegovy 2. The general advice to use contraception still applies 1.
What to discuss with your prescriber
If pregnancy or contraception is relevant to you, raise it with your prescriber before starting Wegovy 1. The key things to cover are your contraception, any plans to conceive, and the need to stop at least two months before trying 12.
If you become pregnant unexpectedly while taking it, stop and tell your doctor promptly, since the medicine is not used in pregnancy 13. These are exactly the questions a clinical assessment is for, which is one reason Wegovy is prescription-only and supplied after individual assessment 3.
Our guide on how Wegovy works covers the medicine more broadly, and breastfeeding is covered in its own guide given the differing considerations 1.
If you take one thing from this guide, let it be that the uncertainty around fertility should not be confused with the clarity around pregnancy and contraception 1. The human fertility effect being unknown is a reason for honesty rather than worry, while the rules, that Wegovy must not be used in pregnancy, that it should be stopped at least two months before trying to conceive, and that women of childbearing potential should use contraception, are firm and worth following closely 1. Treating those practical rules as the settled, important part, and bringing anything specific to your situation to your prescriber, is the safe and sensible approach 13.
Frequently asked questions
Can I take Wegovy while pregnant?
No. The SmPC states Wegovy should not be used during pregnancy, as there are limited data and animal studies showed reproductive toxicity 1. If pregnancy occurs or you wish to become pregnant, it should be discontinued 1. The focus is on avoiding pregnancy on the medicine and stopping in good time before a planned one 1.What should I do if I get pregnant on Wegovy?
Stop the medicine and tell your doctor promptly. The SmPC instructs that semaglutide should be discontinued if pregnancy occurs 1. Do not continue it into a known pregnancy or try to manage the situation alone; stopping and getting prompt advice from your prescriber is the safe response 13.How long before trying to conceive should I stop Wegovy?
At least two months. The SmPC advises discontinuing semaglutide at least two months before a planned pregnancy, because of its long half-life, so the medicine clears before you start trying 1. This is longer than the lead time for some other GLP-1 medicines, and is a decision to plan with your prescriber 1.Does Wegovy affect the contraceptive pill?
It is not anticipated to. The SmPC states semaglutide is not expected to decrease the effectiveness of oral contraceptives, as it did not change the pill's hormone exposure to a clinically relevant degree 2. This differs from some other GLP-1 medicines that advise an extra barrier method with the pill 2. Women of childbearing potential are still advised to use contraception 1.Do I need contraception on Wegovy?
Yes. The SmPC advises that women of childbearing potential use contraception while being treated with semaglutide, because the medicine must not be used in pregnancy 1. Semaglutide is not anticipated to reduce the pill's effectiveness, but reliable contraception remains the safeguard against an unintended pregnancy 21.Is it safe to conceive after stopping Wegovy?
The SmPC advises stopping at least two months before a planned pregnancy because of semaglutide's long half-life, so the medicine clears beforehand 1. Plan the timing with your prescriber rather than stopping and trying immediately, and raise any pregnancy plans before starting or while on treatment 13.Your next step
Wegovy must not be used during pregnancy, given limited data and animal reproductive toxicity, and should be stopped if you become pregnant or wish to. Because semaglutide has a long half-life, the SmPC advises stopping at least two months before a planned pregnancy. Women of childbearing potential are advised to use contraception, though, unlike some GLP-1 medicines, semaglutide is not anticipated to reduce the pill's effectiveness.
If pregnancy or contraception is relevant to you, discuss it with your prescriber before starting and plan to stop at least two months before trying to conceive. If you become pregnant while taking Wegovy, stop and tell your doctor promptly. The effect of semaglutide on human fertility is unknown, so this guide makes no claim either way, and the firm, well-defined rules are the part to follow closely.
Disclaimer
This guide is for general information only and does not constitute medical advice, diagnosis or treatment. The information here describes general clinical context based on UK regulatory sources cited above; it is not a recommendation for any specific medicine or treatment, which can only be made by a prescriber following individual assessment.
If you are considering treatment, speak to your GP or pharmacist, or arrange a consultation with a Cloud Pharmacy clinician. Prescription-only medicines are issued only after clinical assessment and where appropriate.
If you experience side effects from any medicine, you can report them through the Yellow Card scheme at yellowcard.mhra.gov.uk.
