Equal rights and options for all!
I totally agree with this and I think that people saying "use a condom" or "don't have sex unless you want a baby" are missing the point. Here's how I see it:
A woman is pregnant. She has options and the man does not, simple as that. Forcing her to have an abortion is not possible so his choices can never be 100% equal to hers, but currently all of the control rests with her even though the baby is half his. Because of this he should have the choice to remove himself completely from its life if he wants to within the same window a woman has to get an abortion. There would need to be a signed document of his choice to support it or not so he could not change his mind later.
Maybe he was irresponsible, maybe she did deceive him, maybe neither one wanted a baby and it happened anyway, none of that matters. What matters is that men do not have anything even close to equal rights in this situation and in the age of equal rights that's wrong.
I personally would not agree with anyone taking this option unless they were deceived but I still think men should have the right to choose for themselves and live with the consequences.