sex was too rough ??

sooo i had sex w this dude twice, i’m not on any birth control n we didn’t use condoms... i know... i did get a depo shot in may and was supposed to get my second one in august but haven’t ... anyways just some background info. But not going to lie it was pretty rough but my stomach feels weird and i’m very sore. so was it just good sex orr something up? 👀 he also said he didn’t cum *sad* lol but yah girl was more worried about herself also i haven’t had sex in 8 months so maybe i’m just a newbie again. can someone just tell me why my stomach hurts sm and why i keep going number 2 🙃