Hello! I'm 20 years old. Ever since I was 13, I've had irregular periods. Dec. 2012 was when I stopped having periods. I've never been on birth control. I've been sexually active since I was 16. The last 2 times I have masterbated(clitoris, not penetration) I have been spotting right after orgasm. I'm not bleeding, it's just spotting. It will go away 15-30 mins later. Can anyone help me out? I don't know what's wrong with me.