Input
Current Cycle
Nov 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 | Nov 18, 2026 | Nov 13, 2026 – Nov 18, 2026 | Dec 2, 2026 |
| Cycle 2 | Dec 16, 2026 | Dec 11, 2026 – Dec 16, 2026 | Dec 30, 2026 |
| Cycle 3 | Jan 13, 2027 | Jan 8, 2027 – Jan 13, 2027 | Jan 27, 2027 |
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