Jane Galt (the sharpest woman I’ve met) describes how the abortion debate is full of bias and bias accusations:

My favourite, though, are the posts where everyone speculates on the motives of the other side. … So what [pro-lifers] obviously really care about is screwing up women’s lives so that they’ll have to spend the rest of them barefoot and pregnant and in the kitchen making lemonade for Pa and his friends when they come in from a hard day of plowing and oppressing colored people. And pro-choicers don’t actually care about women; all they’re really interested is enforcing a radical feminist agenda on the rest of us so girls won’t be able to wear dresses and lipstick any more and boys will have to have their genitalia surgically removed at puberty and replaced with a copy of The Feminine Mystique. …

There is quite a lot of reasoning from the result to the premise on both sides: people who think that it is of surpassing importance for women to take their place at the helm of half the world’s institutions notice that this would be much more difficult in a world containing both frequent sex with people you don’t intend to spawn with, and restricted access to abortion; they therefore reason that abortion must be moral. Conversely, the pro-life side notes that if you deny the obligation of a woman to carry her pregnancy to term, all sorts of other family obligations become harder to logically support, and therefore conclude that abortion must be wrong. Since the pro-life side generally does not care so much about total workplace parity, and the pro-choice side generally does not care so much about preserving traditional family structures, they conclude with some truth that there is a somewhat questionable moral discounting going on across the divide. But the sin is sufficiently equally distributed that this is not enough reason to dismiss the moral heft of the other side’s arguments.

Like Jane, I’ve not "found a well-reasoned answer to the abortion question," and remain uncertain.