Ovulation Calculator
Track your fertile window and ovulation date
Average: 28 days
Ovulation Date
Sun, Feb 8
Most fertile day
Next Period
Sun, Feb 22
In 14 days
Fertile Window
Tue, Feb 3 - Mon, Feb 9
6-day window with highest chance of conception
Cycle Calendar
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Period Fertile Ovulation
Key Dates
| Last Period Started | Sunday, January 25, 2026 |
| Fertile Window Starts | Tuesday, February 3, 2026 |
| Ovulation Day | Sunday, February 8, 2026 |
| Fertile Window Ends | Monday, February 9, 2026 |
| Next Period Expected | Sunday, February 22, 2026 |
Understanding Your Cycle
- Ovulation: Typically occurs 14 days before your next period
- Fertile Window: 5 days before and 1 day after ovulation
- Peak Fertility: The 2 days before and day of ovulation
- Egg Survival: 12-24 hours after ovulation
- Sperm Survival: Up to 5 days in the reproductive tract
Important Notes
This calculator provides estimates based on average cycle patterns. Actual ovulation timing can vary due to stress, illness, medications, and other factors. For more accurate tracking, consider using ovulation predictor kits (OPKs) or basal body temperature monitoring. Consult a healthcare provider for fertility concerns.