Ovulation Calculator

Calculate most fertile days and ovulation date. Increase pregnancy chances with fertility window. Free ovulation predictor for family planning.

First Day of Your Last Period

Average Length of Cycles

Ovulation & Fertility Analysis

            
            Ovulation Day
          
            Expected Ovulation Date
            -
          
            Days Until Ovulation
            -

Most Fertile Window

High Fertility Period -

Peak Fertility Days -

Next Period

Expected Start -

Days Until -

Luteal Phase

Duration 14 days

Ends On -

Fertility Calendar

Today

Ovulation Day

Fertile Days

Period Days

Conception Tips

Best Time to Try

Have intercourse during your fertile window, especially 1-2 days before ovulation.

Sperm Survival

Sperm can survive 3-5 days, so regular intercourse before ovulation increases chances.

Egg Viability

The egg is viable for 12-24 hours after ovulation, making timing crucial.

Important: This calculator provides estimates based on average cycle patterns. Individual cycles may vary significantly.

For accurate ovulation tracking, consider using ovulation predictor kits, tracking basal body temperature, or monitoring cervical mucus changes.

This calculator should not be used as a form of birth control. Consult with a healthcare provider for personalized advice.