I masturbated twice today, using only my finger; after the second masturbation and orgasm i went to the restroom and when i wiped there was blood. this is the second time it has happened, it never happens when i have single orgasms or masterbate once in a day. this has never happened during intercourse with a mail or with a toy. i don't usually us my fingers vaginally, i mainly focus on the clitoris inserting my fingers once or twice. Why am i bleeding?