There are plenty of internally logically coherent reasons to be for or against abortion privileges, and thinkers and writers far more eloquent than us have outlined them in great detail. I don't see a lot that's productive about hashing it out.
Personally, I'm both pro-life and pro-choice. There are enough good reasons for a woman to elect to have an abortion that I'm perfectly comfortable leaving that choice in the hands of women and their healthcare professionals; there are enough bad reasons for a woman to elect to have an abortion that I believe strongly that we should be promoting education, access to contraception, adoption, and other countermeasures as energetically as we do our personal point of view on whether a fetus is a person and so forth. If more women insisted on contraception and responsible sexual behavior, if they received honest, productive sex education, and if men were full partners in that effort as well as in the bedroom, abortion would be the last-ditch medical procedure it should be. If you're really concerned about abortion, help figure out how to get men to stop being such selfish bastards and put a condom on it.
What I really think is worth discussion is the fact that there's a small but vocal minority in this country who seem to take shots at both contraception AND abortion, and seem determined not to protect and legally enshrine fetuses or women or choice or life, but rather their own interpretation of sexual morality and conduct. This extends to the harassment of not just abortion providers, but also providers of contraception, HPV vaccines, and sex education, as well as anybody disinclined to traditional heteronormative sex and romantic relationships for the sole purpose of procreation.