Ovulation & Fertile Window
See your most fertile days, your likely ovulation date and your next few periods, laid out on a simple cycle view.
Your cycle
From the first day of one period to the first day of the next.
Advanced: luteal phase
The gap between ovulation and your next period. 14 days is typical.
Fertile window
Ovulation
Next period
Period
Fertile days
Ovulation
Today
Your next few cycles
| Period starts | Fertile window | Ovulation |
|---|---|---|
These are estimates based on a regular cycle. Apps, ovulation tests and tracking your own signs can help you refine them.