Ovulation Calculator

The Ovulation Calculator provides the estimation of your fertile window. The chances of a woman getting pregnant.

Select the first day of your last period

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Myth: Morning sickness wears off by lunchtime

Fact: It's common to feel nauseous
                                            throughout the day but if it is getting too much, you must talk to your doctor
                                        

Did You Know?

Only 1 in 20 babies are born on their actual due date. A normal pregnancy often lasts from 38 to 42 weeks, which keeps the majority of parents guessing right up until delivery day. Download the What to Expect app Opens a new window to track your pregnancy week-by-week!

How long is your average cycle?

Need help calculating your cycle?

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Myth: Morning sickness wears off by lunchtime

Fact: It's common to feel nauseous
                                            throughout the day but if it is getting too much, you must talk to your doctor
                                        

The results of this calculator are estimation only based on your inputs

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Myth: Morning sickness wears off by lunchtime

                                            Fact: It's common to feel nauseous
                                            throughout the day but if it is getting too much, you
                                            must talk to your doctor
                                        

Tools to help you plan better