I had sex with my boyfriend three days ago and I've notice I was cramping after. I didn't worried as much just because I thought it was normal especially after doing it doggy style. It's been three days and getting worse. I woke up this morning in need to use the restroom as I'm hesitating to get up I get HORRIBLE cramping. I used the restroom (peed) and the cramps got worse. I had my period July 21st so, I know it can't be my period. Has anybody felt this way and might know what it can be?