my boyfriend and I are sexually active but we only do oral stuff. for months we have been trying to have sex but can't. we have tried literally everything (different positions, more foreplay, etc etc) I am pretty new to sex, but it seems like I can't have anything inside me without it being super painful. my boyfriend says that he can physically stick his entire dick inside of me no problem, but it's just too painful for me. what is wrong with me??? why does it hurt?