How to Use the Ovulation Calendar
The ovulation calendar calculates your fertility based on your menstrual cycle information. Enter your menstrual cycle information, including the first day of your last menstrual period, your menstrual period length and your luteal phase length. Then click on "Create Ovulation Calendar" to view your personal ovulation calendar. If you don't know the length of your menstrual period or your luteal phase, you may use the default values, which represent the average woman.


Choose Your Goal
The ovulation calendar may help you get pregnant, avoid an unwanted pregnancy, or conceive a boy or girl. For example, if you want to avoid an unwanted pregnancy, the calendar will indicate which days to abstain.

Please note that the ovulation calendar works best for women with a regular menstrual cycle.