So I'm supposed to be getting my period like now. I masturbated last night and there was blood on my fingers. So I figured I better stop. I put a pad on, went to sleep. When I woke up there was no blood on my pad... Could it be that I just scratched myself  or that my period is just being funky? I'm really concerned and I am freaking out because I am sexually active but I'm too young to have a baby! Please help!