Nothing has to be “wrong” for you to want to break up. You are allowed to break up for any reason you want.
Hurting her feelings is a possibility, but that's a part of dating, especially at your ages. (Are you going to stay with her forever in case you hurt her feelings by breaking up?)
And your friendship might also end. That's one of the consequences of a break up. That doesn't mean you shouldn't end the relationship if you want out.
Nothing has to be “wrong” for you to want to break up. You are allowed to break up for any reason you want.
Hurting her feelings is a possibility, but that's a part of dating, especially at your ages. (Are you going to stay with her forever in case you hurt her feelings by breaking up?)
And your friendship might also end. That's one of the consequences of a break up. That doesn't mean you shouldn't end the relationship if you want out.
Pull out and enjoy that condomless, baby-free, sex.
You should be extremely offended by everything about this guy. Don’t date men who cheat. You’re not different. He will cheat on you too.