Now you are treading on thing ice there moe (which I happen to agree with, and one reason I do not favor abortion as an option). In today's world you are not allowed to imply that someone should refrain from engaging in activities that produce babies if they are not prepared to take on that responsibility. It is much more important to debate the right to kill the baby than even broach the subject that maybe not even having sex in the first place is a viable and maybe even best option. Everyone should be able to do whatever they want to do completely without consequence.
In a world where many US States are teaching abstinence-only sex education, it takes a massive amount of self-centeredness to say you are even allow to imply abstinence is the best option.
But seriously, you really just put an underscore on the quandry. So the man has one choice: have sex or not, after that his choices are null and void. Yet the woman can have sex all she wants as she has total control over whether to bring the baby into the world or not, and deprive the man of fatherhood or force it on him, regardless of his choices after the fact. Again it is limiting the man's freedom of choice in favor of the woman's. His choices: have sex but only if you want to worry about a baby. Her choice: have sex with no need to worry about a baby since she can just choose whatever she wants to do with it. In essence what he might want out of that act doesn't matter, yet what she wants is the final say in the matter.
What's your alternative? Are you just whining that this is one domain where men can't exert their privilege as fully as they can in other areas?