Ovulation Calculator
Track your fertility window and find your most fertile days to increase chances of conception
Understanding your ovulation cycle is key to getting pregnant. Your "fertile window" is the short period each month when intercourse is most likely to result in conception.
Calculator Inputs
Usually 28 days
Results
Enter values above to see your results
How It Works
Ovulation typically occurs 14 days before your *next* period starts. This calculator estimates that date based on your cycle length and highlights the 5 days leading up to it as your fertile window.
Tips & Best Practices
- •Sperm can survive for up to 5 days in the body, while an egg lives for only 12-24 hours.
- •The best time to conceive is the 2-3 days *before* ovulation.
- •Track other signs like basal body temperature and cervical mucus for better accuracy.
Frequently Asked Questions
Can I get pregnant outside my fertile window?
It is extremely unlikely. Conception requires a viable egg and sperm meeting. Once the egg dissolves (24h after ovulation), you cannot get pregnant until the next cycle.
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