Back to Calculator

Last Period: january 1, 2026

Estimated Ovulation Date

January 15, 2026
Peak Fertility Window

Fertility Timeline

Fertile Window Starts:Jan 11
Peak Ovulation Day:Jan 15
Next Expected Period:Approx. 14 days after

Conception Advice

If your period started on january 1, your chances of conception are highest between Jan 11 and Jan 16.

Quick Tip: Sperm can live inside the female body for up to 5 days, so the days leading up to ovulation are critical.