Does Wegovy Impact Fertility?
Wegovy (semaglutide) has no evidence of causing infertility in humans. Animal studies showed no direct fertility effects, but female rats exposed during pregnancy had fetal growth issues and higher offspring death rates. Human data from clinical trials and post-marketing reports show no fertility impairment. Women should stop Wegovy at least 2 months before planning pregnancy due to its long half-life (about 1 week), as its effects on early pregnancy are unknown.[1][2]
Can Men Taking Wegovy Have Fertility Problems?
No specific fertility risks for men. Semaglutide trials included men of reproductive age with no reported sperm quality or count changes. Animal studies also found no male fertility effects.[1]
Wegovy and Pregnancy: What Happens?
Wegovy is pregnancy category unknown; avoid during pregnancy. Limited human data exists, but animal studies indicate potential fetal harm like smaller birth weights and skeletal abnormalities. The label advises effective contraception during use and for 2 months after stopping. If pregnancy occurs, discontinue immediately and consult a doctor—report to the pregnancy registry at 1-800-727-7064.[1][2]
Planning Pregnancy While on Wegovy?
Stop Wegovy 2 months before trying to conceive to clear the drug (half-life allows ~5 weeks for near-elimination). Weight loss from Wegovy may indirectly improve fertility in obese patients by regulating cycles and ovulation, but rapid weight changes could stress hormones. Discuss with a doctor for personalized timing.[1][3]
Breastfeeding on Wegovy?
Unknown if semaglutide passes into breast milk. Avoid breastfeeding while using Wegovy and for 2 months after the last dose due to potential infant risks.[1]
Wegovy vs. Other GLP-1 Drugs for Fertility?
Similar profile to Ozempic (same drug) and Mounjaro (tirzepatide). No class-wide fertility signals, but all recommend stopping before pregnancy. Some women report menstrual irregularities anecdotally, possibly from rapid weight loss, not the drug itself.[2][3]
Long-Term Fertility Concerns?
No long-term human data yet, as Wegovy launched in 2021. Ongoing studies monitor reproductive safety. Obesity itself harms fertility more than Wegovy; sustained weight loss often helps.[3]
Sources
[1] Wegovy Prescribing Information: Novo Nordisk
[2] FDA Label: DailyMed
[3] DrugPatentWatch.com: Semaglutide Patents and Safety