I used to believe that abortion was one topic where both sides were dead wrong. And then the "pro-life" side started murdering the other side.
I'm adopted, so I'm supposed to be against abortion. But I believe that God is all-powerful, and that people aren't, so we shouldn't go around trying to second-guess God. The bottom line is that choice is what makes life wonderful. If we have choice taken away from us, there's no reason to live.