mittelschmerz

I have had the low belly pain (mittelschmerz) since the time I got my period at 13 years , which I never knew what was it until this year that it’s a pain that some women get at their ovulation.... said it’s normal but my question is , anyone here have this ? If yes have you got pregnant and have kids? Because I remember in 2016 I had sex the same day I had this pain and I didn’t get pregnant . Now I am little concern about this and I need help from you all . Thank you