I don't agree with the "just don't have sex" posters.
Healthy, fulfilling adult relationships where both partners are happy, that don't involve sex, are very rare. Sex is far more often done for pleasure, intimacy and bonding, etc, than it is to make a baby.
Realistically, who is going to commit to a sexless relationship willingly, even from the female side, when it is so often a huge part of a healthy, happy relationship?
What we need, is more contraceptive options for males. It isn't as easy as "get a vasectomy", they dont just refer anyone, plus what if he wants kids, just not at this point in his life/with this partner? It's a surgery, that isn't easy to reverse and be successful. As for condoms, they can break, slip off, and for many greatly reduce the sensations.
Should a woman be forced to have a baby she doesn't want when contraception fails for her? No, of course not, so neither should a man who tried to have "safe" sex but was one of the "accidents".
If an abortion is still available, then the guy should get the option to walk away from all parental/financial responsibility if he doesn't want the baby, but she chooses to continue the pregnancy knowing it will be as the single financial provider.