In my opinion, "pro-life" is a bit tricky. I know many people who are "pro-life", which to them means both opposed to abortion and opposed to the death penalty. (Interestingly, some of these "pro-life" people have more exceptions to their abortion beliefs than a legal disclaimer at a used car dealership.)
I consider myself "anti-abortion." Or, I could be considered "pro-innocent life."
I believe abortion kills children, and I am opposed to it. On the other hand, I vigorously support the death penalty. So I can see why some would not believe I am "pro-life."
I'm against abortion and for the death penalty, but also against euthanasia and cloning. So "pro-life" still describes me. The fact that I don't want brutal killers out killing others means I'm pro-life, too.