About Ovulation
Ovulation is the release of an egg from the ovary. Your fertile window is the period when conception is most likely.
How This Calculator Works
Enter the first day of your last menstrual period and your average cycle length. This tool calculates your estimated ovulation day (usually 14 days before the next period) and your fertile window.
Advice
Track your cycles regularly for more accuracy. Ovulation may vary due to stress, illness, or irregular cycles. This tool provides estimates only.
FAQs
Can this predict exact ovulation? No, it's an estimate. Ovulation may vary.
What is the fertile window? The 5 days before ovulation and the day of ovulation are most fertile.
Is this tool free? Yes, fully free to use on your site.
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