When I first started having sex my vagina never hurted... but after a while my vagina started to hurt after sex... also after sex I pee an when I do it stings when I pee... my vagina starts to hurt after we have sex we stop for a minute then start again but when we start again it stings when his penis touches a certain part of my vagina... what could be the problem.,

It sounds like you might have some sort of infection. Go to the doctor and get it checked out.

How old are you?