Cramps from sex

Might be tmi but has anyone had painful cramps from & during sex? I had the big O, so just wondering if that would cause it? I’m 7 weeks & the cramps have significantly gone down after sex. My nips were also stimulated so not sure if that would have anything to do with it. It’s also pretty common for him to hit my cervix since his peepee is kinda big for me. We had sec yesterday too but I didn’t have the big O or cramp.. idk I’m just a big ole worrier