Ovulation Calculator
Calculate your ovulation dates, fertile window, and optimal conception times. Track your menstrual cycle and plan for pregnancy with accurate fertility predictions.
Ovulation Calculation
Enter your menstrual cycle details to calculate ovulation dates
Average menstrual cycle length ranges from 22 to 44 days (28 days is typical)
Fertility Window
Enter your cycle details to calculate your fertile window.
Understanding Ovulation
How It Works
- Ovulation typically occurs 14 days before your next period
- The egg survives for about 12-24 hours after ovulation
- Sperm can survive in the reproductive tract for up to 5 days
- The fertile window is approximately 6 days long
Best Times for Conception
- Highest probability: 1-2 days before ovulation
- Good probability: Day of ovulation
- Lower probability: 3-5 days before ovulation
- Very low: After ovulation day
Signs of Ovulation
- Changes in cervical mucus (clear, stretchy)
- Slight increase in basal body temperature
- Mild pelvic or abdominal pain
- Breast tenderness
- Increased libido
Important Notes
- This calculator provides estimates based on average cycles
- Actual ovulation can vary by 1-2 days
- Stress, illness, and lifestyle can affect timing
- Consult healthcare providers for fertility concerns