Last night after having sex, I had extremely bad cramps like menstrual cramps. I felt like I couldn't breathe but th pain went away after 20 minutes. I know this isn't normal but I don't know what the possible causes for this could be. Does anyone know what it might be. My boyfriend doesn't have an STD neither do I. I don't think I'm pregnant, but I do have endometriosis

I have that same thing after sex. I think what it is, is when my muscles are in a werid posisition, it cause it to be uncomfortable. Plus if he's big.. lol it doesn't help. After my period ends is when I experience this the most, I just learn to not have sex for awhile after my period.