Anyone who is truly pro-life should also support all methods of reducing abortions, including sex-education and wide availability of contraception. Unfortunately, and especially when religion is involved, that’s very often not the case.
How is the term pro-choice limiting and divisive? It’s a legitimate description of the position, which is being in favor of the woman’s right to choose.
Anti-abortion is much more accurate than pro-life.
JEDIT: See also Ryan’s post.