Ovulation Calculator
Calculate your estimated ovulation date and fertile window
Menstrual Information
⚠️ This calculator provides statistical estimates based on regular menstrual cycles.
Actual ovulation dates can vary due to stress, health conditions, hormonal changes, medications, and other factors. Results may be less accurate for those with irregular cycles.
WARNING: Do NOT use this calculator as a contraception method. The failure rate is extremely high.
For reliable contraception, use proper birth control methods. For accurate ovulation tracking, use ovulation predictor kits (urine tests) or consult a healthcare provider for ultrasound monitoring.
Actual ovulation dates can vary due to stress, health conditions, hormonal changes, medications, and other factors. Results may be less accurate for those with irregular cycles.
WARNING: Do NOT use this calculator as a contraception method. The failure rate is extremely high.
For reliable contraception, use proper birth control methods. For accurate ovulation tracking, use ovulation predictor kits (urine tests) or consult a healthcare provider for ultrasound monitoring.
FAQ
How is ovulation calculated?
Ovulation typically occurs 14 days before the next period. For a 28-day cycle, it's day 14. For a 30-day cycle, it's day 16.
How long is the fertile window?
The fertile window is about 6 days: 5 days before ovulation and 1 day after. Sperm can survive up to 5 days, and the egg is viable for 12-24 hours after ovulation.
What if my cycle is irregular?
This calculator assumes regular cycles. For irregular cycles, consider using ovulation predictor kits or consulting a healthcare provider.
Advertisement (AdSense)