The first and most obvious reasoning is the concept that sex, under certain circumstances, warrants punishment, and an unwanted child is an acceptable, adequate form of punishment.
Source: Sluts, Souls, and the Oversimplification of the Pro-Life Movement | Meh, it’s Sarah.
It’s not that these people hate women. It is that they value the metaphysical concept of a soul over the real physical well-being of a person.