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Nestlé® Materna® Fertility Calculator

Trying to become pregnant?

Knowing when you are likely to ovulate is one of the easiest ways to improve your chances of conceiving a baby. Ovulation is the time of the month when your body releases an egg.

Try out our other tools and more >

When did your last period start?

Enter the date of your last period and select the average number of days between your menstrual periods. Click Calculate to estimate your most fertile days to try for a baby.

This Fertility Calculator is provided for educational purposes only. Contact your health care provider for personalized assistance.


What is the average length of your menstrual cycle?

28
21 25 29 33 37 41 45
Days

 
440