Welcome to the Free Ovulation Calendar. Use it to predict your most fertile days. See which days favor a boy or a girl. Track your fertility cycle over time for increased accuracy. Plan a special night or vacation in advance. The Free Ovulation Calendar is EASY, anybody can use it! Just click on the day your last period started and all the calculations are done for you.

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  day cycle what's this?   day luteal phase what's this?  

Start of menstrual cycle Click to begin menstrual cycle
Conditions favor a boy (click again to remove)
Conditions favor a girl more information
* Outlined dates are projected