GLP-1 and Pregnancy: Safety, Fertility, and the Ozempic Baby Phenomenon

Are GLP-1 medications safe during pregnancy? Learn about semaglutide, tirzepatide, fertility, Ozempic babies, washout periods, and when to stop treatment.

July 25, 2026Healthy-Weight Editorial11 min read

Medically reviewed by Dr. Sarah Chen, MD

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Are GLP-1 medications safe during pregnancy?

No GLP-1 medication is approved for use during pregnancy. Ozempic, Wegovy, Mounjaro, Zepbound, Rybelsus, Saxenda, and Victoza should all be stopped if you are pregnant, planning to become pregnant, or breastfeeding.

The FDA recommends stopping semaglutide at least 2 months before trying to conceive. Tirzepatide and liraglutide should be stopped at least 1 month before conception. These washout periods allow the medication to clear from the body.

What is an Ozempic baby?

The term "Ozempic baby" refers to unexpected pregnancies reported by women taking GLP-1 medications. These pregnancies are not caused by the drug acting as a fertility treatment. Instead, they are usually the result of:

Restored ovulation: Weight loss can restart regular menstrual cycles in women with PCOS or obesity-related anovulation.
Reduced oral contraceptive absorption: GLP-1s slow stomach emptying, which may reduce how well birth control pills are absorbed.
Unexpected fertility: Women who thought they were infertile due to weight may suddenly become fertile again.

If you are taking a GLP-1 and do not want to become pregnant, use a non-oral or backup form of contraception and discuss options with your provider.

Can GLP-1 medications affect fertility?

GLP-1s do not directly increase fertility. However, weight loss from these medications can improve fertility in some women by restoring ovulation. This is especially common in women with PCOS or obesity-related irregular periods.

If you are trying to conceive, you should stop GLP-1 treatment before pregnancy and work with your provider on a safe weight management plan.

What to do if you become pregnant on a GLP-1

If you discover you are pregnant while taking a GLP-1 medication:

Stop the medication immediately.
Contact your healthcare provider.
Do not panic. Limited human data does not confirm harm, but prompt medical guidance is important.
Discuss pregnancy-safe alternatives for blood sugar or weight management.

Stopping the medication early in pregnancy is the safest course of action.

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GLP-1 washout periods before pregnancy

Medication	Active ingredient	Recommended stop before pregnancy
Ozempic, Wegovy, Rybelsus	Semaglutide	At least 2 months
Mounjaro, Zepbound	Tirzepatide	At least 1 month
Saxenda, Victoza	Liraglutide	At least 1 month
Trulicity	Dulaglutide	At least 1 month

Why are GLP-1s not recommended in pregnancy?

The main concern comes from animal studies. In pregnant rats, semaglutide exposure was associated with developmental issues and fetal harm. Animal studies do not always predict human risk, but because of these findings and limited human pregnancy data, GLP-1s are considered unsafe for pregnancy.

Intentional weight loss during pregnancy is also not recommended because it can deprive the fetus of necessary nutrients.

GLP-1s and breastfeeding

GLP-1 medications are not recommended during breastfeeding. Semaglutide has been found in the milk of lactating rats, and human data is limited. If you are breastfeeding, discuss safe weight management options with your provider.

What about GLP-1s for diabetes during pregnancy?

Some GLP-1s may be used during pregnancy for type 2 diabetes only if a provider determines that the benefits outweigh the risks. Insulin is usually preferred during pregnancy because it has the longest safety record.

How to plan pregnancy while using GLP-1s

If you plan to become pregnant:

Tell your provider early
Stop the medication according to the recommended washout period
Use reliable contraception until the washout is complete
Take folic acid before conception
Maintain a healthy, stable weight
Switch to pregnancy-safe diabetes medications if needed

Frequently asked questions

Can I take Ozempic while pregnant?

No. Ozempic should be stopped if you become pregnant. The FDA recommends stopping semaglutide at least 2 months before trying to conceive.

Can GLP-1s make you more fertile?

Not directly. However, weight loss from GLP-1s can restore ovulation in women with PCOS or obesity-related infertility.

Do I need to stop GLP-1 before getting pregnant?

Yes. Each medication has a recommended washout period, usually 1 to 2 months, to clear the drug from your body.

What if I get pregnant while taking Wegovy?

Stop the medication and contact your provider immediately. In most cases, stopping early in pregnancy is the safest approach.

Can GLP-1s affect birth control pills?

Possibly. GLP-1s slow stomach emptying, which may reduce absorption of oral medications, including birth control pills. Use backup contraception.

Conclusion

GLP-1 medications are not safe during pregnancy and should be stopped before conception. They can affect fertility indirectly through weight loss, which is why unexpected "Ozempic babies" have been reported. Planning ahead, using reliable contraception, and working with a provider can help you manage weight safely while protecting pregnancy health.

If you are taking a GLP-1 and have questions about pregnancy or contraception, speak with a licensed US telehealth provider for personalized guidance.

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