Not to step out in front of a runaway train, and I'm not sure if you were being sincere or embellishing to prove a point in your debate, but I 100% do not think the terms "Pro Choice" and "Pro Abortion" are synonomous. I don't think anyone is "Pro Abortion", per se. I believe that most of the "Pro Choice" folk just believe there are a select few times that Abortion is a viable (yet obviously unfortunate [yes, I know that last word is going to get me hung in here]) alternative. Rape, incest, health of the mother, etc.
My 2 cents...