Semaglutide may indirectly improve fertility by promoting weight loss, which can restore hormonal balance and ovulation in people with obesity-related infertility. Weight loss of even 5% to 10% of body weight has been shown to improve reproductive outcomes in overweight individuals {}. However, semaglutide itself is not a fertility treatment, and it must be stopped before attempting conception due to potential risks to fetal development.

The "Ozempic Baby" Phenomenon

Reports of unexpected pregnancies among semaglutide users have gained widespread attention, with many people attributing surprise pregnancies to the medication. There are two likely explanations for this trend:

• Improved ovulation: Obesity is a major cause of anovulation (lack of ovulation) and irregular menstrual cycles. As patients lose weight on semaglutide, hormonal function can normalize, restoring fertility that was previously suppressed by excess weight {}
• Reduced oral contraceptive effectiveness: Semaglutide slows gastric emptying, which may reduce the absorption of oral birth control pills, potentially leading to contraceptive failure {}

Both factors can work together, creating a situation where fertility increases while birth control reliability decreases.

How Weight Loss Improves Fertility

Excess body fat, particularly visceral fat, disrupts the hormonal signals that regulate reproduction. In women, obesity is associated with:

• Elevated estrogen levels from fat tissue conversion of androgens
• Insulin resistance, which drives excess androgen production in the ovaries
• Irregular or absent menstrual cycles
• Polycystic ovary syndrome (PCOS), a leading cause of infertility {}

In men, obesity can reduce testosterone levels, impair sperm quality, and decrease sperm count {}. Weight loss through semaglutide can help reverse many of these effects, improving fertility potential for both partners.

Semaglutide and PCOS

Polycystic ovary syndrome affects an estimated 6% to 12% of reproductive-age women and is closely linked to insulin resistance and obesity {}. Semaglutide addresses several aspects of PCOS simultaneously: it promotes weight loss, improves insulin sensitivity, and may help normalize androgen levels. While semaglutide is not FDA-approved for PCOS treatment, some providers prescribe it off-label to help manage the metabolic components of the condition {}.

Women with PCOS who start semaglutide should be aware that improved ovulation may occur relatively quickly with weight loss, potentially leading to unexpected pregnancy {semaglutide and pregnancy planning}.

Male Fertility and Semaglutide

Research on semaglutide's effects on male fertility is more limited. Weight loss generally improves testosterone levels and sperm parameters in obese men. Some animal studies have raised questions about GLP-1 receptor agonist effects on testicular function, but human data has not confirmed negative effects on male fertility {}.

Men using semaglutide who are planning to become fathers should discuss their medication with a fertility specialist or urologist if they have concerns about sperm quality or reproductive health.

Contraception Considerations While on Semaglutide

If you are taking semaglutide and do not want to become pregnant, reliable contraception is essential. Given the potential for reduced oral contraceptive absorption, consider:

• Non-oral methods such as IUDs, hormonal implants, injections (Depo-Provera), or the patch
• Barrier methods (condoms) as backup when using oral contraceptives
• Discussing contraceptive options with your gynecologist to find the most reliable method for your situation

Frequently Asked Questions