Weird cramps

Caroline🌼 • in a relationship//dog mom of one
Yesterday I had sex with my partner and ended up with bad cramps due to his size. 
The rest of the day the cramps came and went, but never staying gone. And it's painful to pee, but not like burning. It feels almost like it's too hard to push the urine out, like I'm trying to force myself to pee when I dont have to even though I do. The cramps would get so bad that if I sat down it would feel like a weird sharp pull in my uterus or about that area. 
My period is scheduled for two days from now, so I'm wondering if it's just way way way early period cramps that are crazy different from my normal? Or if anyone else has any other ideas?