It really really depends on the situation. If it is the result of a one night stand, or similar circumstances, then no. That was purely about sex, and for the guy to come back and be like "BUT I WANT DA BABY HURR DURR" is retarded.
the biggest exception i see is a married couple, in which case i feel like it really must be discussed between the couple. I feel like there should be a mandatory *notification* for the father, but he shouldn't have an overriding say in it. I mean, it is after all, the woman's burden to endure.