Let me be perfectly clear: I do not support abortion. I believe that is it wrong, not because of some antiquated Judeo-Christian moral set, nor because of any desire to take away a woman's right to choose.
I believe that is it wrong because of biogenesis - life arises from pre-existing life, not from nonliving material. The fetus is as alive as the female host carrying it. It is true that it can not survive outside of its host during the early stages of its existence, however I think far less abortions would take place if the need to "terminate unwanted pregnancy" involved termination of the host itself.
The argument can be made that we terminate life in order to eat meat; I can't think of any human being that would eat her own aborted material.
It doesn't matter to me if people disagree with my stance. I certainly won't campaign that the world take away a woman's right to choose.