Birth Control & Women's Health

Does Breastfeeding Work as Birth Control?

Linda Girgis | MD

Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 20th, 2026.

Breastfeeding can provide temporary birth control but is not 100% reliable. The lactational amenorrhea method (LAM) is about 98% effective when three specific conditions are met: you're exclusively breastfeeding, your baby is under 6 months old, and your menstrual periods haven't returned. However, ovulation can occur before your first period returns, meaning pregnancy is possible even without menstruation. Studies show that fertility typically returns between 6-8 months postpartum for breastfeeding mothers, compared to 6-8 weeks for non-breastfeeding mothers. For reliable contraception, consider combining breastfeeding with other birth control methods approved for nursing mothers.

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