Put yourself in the shoes of a woman. Pretend you have feelings and emotions. Still think it's that easy to terminate a pregnancy?
There would be no problem if the OP had just used contraception, therefore he is liable for child support. Even if the lady had been on the pill, a course of antibiotics(if she was sick) would have rendered it useless and he'd still be where he is right now.
I'm not saying its easy, of course its not. Abortion is a traumatic thing.
However, having a baby when you are not ready is even more traumatic.
Everyone is telling the guy to man up, how about telling the woman to woman up? If neither is ready for a baby, then get an abortion. Yes I'm sure most people would rather have their teeth pulled with no anaesthetic, but beggars cant be choosers. You got yourselves into this difficult situation, and she is the only one who can do something about it.