How do you calculate when you start your fertile window?

Question

I don't necessarily trust this app. So I want to do it myself but I am unsure how...I know every body is different but I need to know lol

Answer

The only  way is to test a cycle using opks and see when your peak is. Glow will adjust your fertile window based on the opk results you log within the app.

Answer

You ovulate one day and five days before and one day after has the best chance for pregnancy. You can track your temperature, use opks, or keep an eye on your cm for egg white like cm. If you have regular periods your ovulation will be really regular too.

Answer

You ovulate 12-14 days before your next period. You can research the changes that occur in your body so you recognize them and will know when you ovulate. Besides that it’s hard to know because ovulation can be irregular like periods can.

How do you calculate when you start your fertile window?

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