I am sorry this is happening. However, it is her choice. I'd ask you to think about a few things. You say you're "pretty sure" the baby is yours. This means you don't trust this woman or that you don't have an exclusive relationship, neither of which is a good basis for a lasting relationship. You say that you bought her a ring shortly after you found out she's pregnant. Right now, that is telling her you only want to commit because of the baby. This is not a good reason to get married. Finally, you say you love her, but that you can't maintain the relationship if she has an abortion. It's not clear to me if you have a moral objection to abortion or if you're upset because you think this is something she's doing to YOU or to YOUR child. If it's the former, then you must break off the relationship as you are right, you're never going to be able to resolve this in your mind and you'll only hurt yourself and her in the long run. If it's the latter, then you need to know this is NOT how she sees this and it's not true. She is not doing this TO you, this is her body, her life and her decision.You need to be having this discussion with her and perhaps with a counselor, one who specializes in relationships, not a pro-life, pro-choice or religious counselor.