Cramping during sex ? Will it go away ?

kallie
okay so I just lost my virginity like 2 weeks ago right ? and we had sex two times after that and each time right when he entered I got these really bad stomach cramps that felt like period cramps. I told him to slow down and they didn't hurt as bad but they still hurt and I'm just wondering if it's gonna ever go away like is this something my body is just going to have to get use to ?