Ovulation Calculator

Estimate your fertile window

Understanding Your Cycle

  • Ovulation: Typically occurs 14 days before your next period
  • Fertile window: 5 days before ovulation + ovulation day
  • Egg viability: An egg survives 12-24 hours after ovulation
  • Sperm survival: Sperm can live up to 5 days in the body

Signs of Ovulation

  • Change in cervical mucus (clear, stretchy)
  • Slight rise in basal body temperature
  • Mild cramping or discomfort
  • Increased sex drive
  • Breast tenderness

Important Disclaimer

This calculator provides estimates only. Many factors affect ovulation timing. For family planning purposes, consult a healthcare provider and consider additional tracking methods like ovulation predictor kits (OPKs).