Ovulation Calculator

Calculate your ovulation date and fertile window for better cycle tracking and conception planning.

Cycle Information
Enter your menstrual cycle details

How Ovulation Calculators Work

Understanding your menstrual cycle and ovulation is crucial for family planning. Our calculator uses scientific methods to estimate your most fertile days.

Key Factors:
  • 1Last period date (starting point)
  • 2Cycle length (typically 21-35 days)
  • 3Luteal phase (time between ovulation and period)
  • 4Fertile window (5 days before ovulation + ovulation day)

When Am I Most Fertile?

Your fertility window is the time when you're most likely to conceive. Understanding this window can help with both conception and natural family planning.

Fertile Window
  • 5 days before ovulation
  • Day of ovulation
  • Highest chance of conception
Cycle Phases
  • Follicular phase
  • Ovulation
  • Luteal phase

Note: These are estimates based on average cycle patterns. Individual results may vary based on health, stress, and other factors.

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