pain in stomach during pregnancy?

trigger warning maybe? i don’t know if i should put one. i’m 12w2d pregnant and every time after me and my boyfriend have sex, about an hour or two after i have a sharp pain in my belly right beside my belly button all the way into my vagina. i know cramping & some pains during pregnancy are normal but i just wanted to make sure this is normal? i’ve looked it up and read a few different things but still am not positive. i am also going to bring it up to my OB. i go in 2 weeks for my next appointment! i’m just a FTM and i’m scared about EVERYTHING that goes on lol. thank you for anyone who tries to help or calm my mind!! because the pain is pretty bad.