I'm pro life as a whole but that's a crazy take on things. The average woman would need to get an abortion a year. That runs me the wrong way on a bunch of different levels. Abortion should be an "oh shit" plan, not a routine thing.
There are plenty of methods of birth control that don't affect moods. Condoms, IUDs, and pulling out (if you're in a very trusting relationship and the guy is "good" at it) all work.