[RealJames]

As logical as it may be, the concept of refraining from vaginal sex to prevent pregnancy is something that no significant portion of the world will ever adopt. Sex is mainstream, packaged, sold, distributed etc.

In the case accidental pregnancy, I don't think either of the parents have more of a right than the other to decide if the child is kept or not (after birth).
But I think if either of the parents doesn't want to be involved in that child's life then that's fine.
If a woman doesn't want the child after birth, the father can keep it or it can go up for adoption.
If a man doesn't want the child after birth, the mother can keep it or it can go up for adoption.