Ovulation Calculator

This is an estimate. For contraception, pregnancy confirmation, or medical decisions, combine it with ovulation tests, basal temperature, and clinical guidance.
Next estimated ovulation
Mon, Jan 15, 2024
14 days left
Fertile window
Wed, Jan 10, 2024 - Tue, Jan 16, 2024
Highest chance days
Sun, Jan 14, 2024 - Mon, Jan 15, 2024
Next period estimate
Mon, Jan 29, 2024
Until next period
28 days left
Current cycle
Day 1
4%
Quick presets
Cycle
Luteal