I was having sex with my boyfriend and we heard a pop and I started to bleed a lot. I was not a virgin at the time it happend. Later, I noticed a peice of flesh hanging out of my vagina which I assume to be my hymen. But where it connected across my vagina it is a blackish color and has been bleeding for a day and a bit now. Is this normal? What's happening? I am getting my mother to bring me into the gyno, I am just stressing. I am 16 years old, if that helps.