Okay me and my friend had sex today. A lot of sex. Well about 2-3 hours later i started having cramps (i have them now) I thought maybe it was because I didn't eat at all except a poptart but i don't wanna take away the chance that I'm pregnant. My period isn't until the 14th though and its the 2nd so I won't be able to tell if I'm pregnant that way until then and i was wondering if having sex can make it late because last time i had sex I was almost a week late and i wasn't pregnant. Help me please! I'm literally desperate haha