I am a 20 year old female, haven t had a period in quite some time (I m not sure how long. I think the last one was end of June, beginning of July? Maybe before then?). I ve taken several pregnancy tests (had blood ones done too) and I m not pregnant. I don t have any pregnancy symptoms either, so I don t think it s that. I have very mild cramping sometimes that leads me to believe my period is about the start but it doesn t. A little more history, in the past I ve had months that I skip my period sometimes and also when I do get my period I have EXTREMELY debilitating cramps. So much pain I can t move at all or breathe. Nothing helps.