The past two times my S/O and I have had sex it was good, great even... But afterwards when we are finish it feels like I have killer cramps and I'm not sure why! The only other time this has ever happened is when we had sex on the 2nd day of my period and the cramps got so bad we had to stop and I had to lay still in a ball of pain until it subsided a bit. No big deal I just wait until my period cramps are over in about three days and I'm good to go but I don't know why it's hurting now when I'm not on my period yet. Help please!!!