HELP!!

The external part of my vagina hurts so bad. I think my urethra and clit hurts too, but I don't think I have a UTI? I have tears alllll over my vagina, especially the perineum. I threw up and cried from the pain. My boyfriends has a much bigger than average penis and it hurts so much (on the outside). How do I stop this pain?!?!?!