I believe in abortion for any reason, on demand, up to term.
I'd like to explain this view, because I understand it's abhorrent to many.
Logic goes thus, starting from my teenage self's position:
Abortion is nasty, it's wrong.
What about rape?
Well, clearly we can't force someone to have a baby if they've been raped.
But doesn't that place a different value on the life of the foetus conceived of rape? And also, what if a woman has been raped, but not reported it, or failed to secure a conviction, is it still OK?
Does rape make the foetus worth less?
What about disabled foetus'?
It would be unethical to force women to carry and birth a severely disabled child, because they may not feel equipped to raise such a child.
But other women might not feel equipped to raise a NT child. And doesn't that place foetuses with abnormalities as worth LESS than an NT child?
What about foetuses after 24 weeks? They can survive, with massive intervention and a high possibility of disability?
So it's OK to abort a disabled foetus, but not to abort an apparently NT one with a high chance of disability? Does a foetus become "more" human just because it looks more human? That's not biology. Apart from the horror of the procedure, there is no moral difference in my mind between an abortion at 5 weeks and one at 30. You are doing the SAME THING, it is just the mechanics which are different.
That's the baby angle -what about the women? Well, if you're saying it's OK to abort a child conceived of rape or incest, you are placing a moral judgement on the behaviour of the woman. Essentially, the woman is being punished for having consensual sex, by having her right to bodily autonomy and parental choices removed. This also covers it being OK in the case of contraceptive failure.
What about women who have dozens of social abortions? Well, for a start, most people don't. For another, if somebody is that clear about not wanting to be a parent, what reason could you possibly have for forcing them other than punishment?
That's a simplified version, I've been thinking about this for a long time. There are also massive feminist issues around power (patriarchy resents the power women have to birth etc). Anyway, I believe it's a logical position, and the only one that does not have misogynist or disablist overtones.