My boyfriend and I have been having sex for about a month now. His penis is very large and my vagina is still very tight even after a month of having sex with him. It hurts when he is trying to enter me, then it feels fine during sex, but as soon as we're done I'm sore again. I always bleed a little and everything feels swollen and raw. It's so painful each time we start to have sex that I could cry. We haven't tried artificial lube (we just go natural or use our spit). I've suggested to him that we try lube, but he doesn't want to try it. I think he might not be as turned on with it. He feels like it's his fault that I'm hurting and I don't want him to feel like that because I love him and how large he is and how good he is in bed. If anyone has any ideas, please help!