Recently lost virginity questions

I just recently lost my virginity & before that I’ve never been touched. I wasn’t nervous at all but I didn’t feel good. I was soaking wet before we started but after I dried up. It really hurt when he fingered me & when he put his penis in, it was the worst pain ever. I am not on any birth control & we used a condom. It’s now been a week since & my lower abdomen feels like cramps. My period is due in the next 7 days, should I be worried about pregnancy? When will sex start to feel good?