Sounds like you could have a tear or something. I've never heard of it being such a long time and I know I didn't bleed afterwards. Sounds like you may need a trip to the doctor as 13 days seems to long. Is it heavy bleeding or light?
Its normal.Every woman is different,i lost my virginity at 18 and i had to wear a pad for two weeks afterwards.It will stop on its on and u should have your regular period later on.