Im 17, and i had sex for the first time about a week ago. i bled after/during, which i thought was normal because of my hymen breaking. it hurt, so we didnt force anything and didnt go for too long. but i had sex again today and it didnt hurt as much so we went a little bit longer. but after i noticed that i bled again...and a lot. im not understanding whats going on...is this normal??