How accurate is this?

Question

I've been logging my period on this app for 3 years now, and I almost always get my period when it says I will. How accurate is the 'fertile window' prediction? My husband and I haven't used birth control other than withdraw for a few years & he finished in me on the 30th when I had a 27% chance of becoming pregnant.

Answer

Going just based off your period all apps are going to assume you ovulate 2 weeks before the start of your next period which isn't true for everyone.

Answer

It could be accurate by now since you've been logging for 3 years but you could have ovulated earlier or later within that time frame.

Answer

My window was earlier than predicted by any app despite accurate period predictions. We had sex based on CM and that worked.

Answer

I got pregnant after having sex one of the days glow predicted a high chance of pregnancy.

How accurate is this?

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