Input
Current Cycle
Aug 18, 2026
How It Works
Ovulation typically occurs about 14 days before the start of your next period (the luteal phase). The fertile window spans 6 days: the 5 days before ovulation plus ovulation day itself.
The most fertile days are the 2 days before ovulation and ovulation day, when conception is most likely.
This calculator provides estimates based on average cycle patterns. Individual cycles may vary. Consult a healthcare provider for personalized fertility guidance.
Multi-Cycle Timeline
| Cycle | Ovulation | Fertile Window | Next Period |
|---|---|---|---|
| Cycle 1 | Aug 18, 2026 | Aug 13, 2026 – Aug 18, 2026 | Sep 1, 2026 |
| Cycle 2 | Sep 15, 2026 | Sep 10, 2026 – Sep 15, 2026 | Sep 29, 2026 |
| Cycle 3 | Oct 13, 2026 | Oct 8, 2026 – Oct 13, 2026 | Oct 27, 2026 |
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