Journeyman

A married couple.

Should the wife become pregnant, she can abort without so much as telling the husband. She has no obligations.

Should the man desire a vasectomy, he can not receive the operation without the wife signing a waiver.

I don't like that at all. Now, a lot of times you'll have a wayyyyyy fucked up husband who's abusive, dominating, and crazy, and it's better if he doesn't know what she chooses to do (and for the naysayers who are pro-life except in the cases of rape, yes, husbands can rape wives. It happens).

But I see no reason why I need my wife's sayso if I wanna cut the loop.

And in terms of the baby being the man's too, suing for custody post-birth is all you get, maybe it ought to be opened up for pre-birth custody suits. If you don't want the child aborted in the current legal setup, be a little more picky over who you stick yourself into next time.