Here's my two cents...
At one point in my life I was pro-life but I at least acknowledged a need for abortion if the pregnancy was due to rape or incest. Now I am 100% pro-choice, specifically women's choice. It's their body, what they decide to do with it is not my concern and I would be an arrogant male to presume that I should have a say or a vote on the subject. Sure if it's my baby stewing in there I might try to influence the decision but who am I to decide for women as a whole?
I have two daughters (3 and 5) and if (pretend) God forbid, they get pregnant as a teenager I would personally pay for their abortion behind their mother's uber Evangelist Christian back. Granted I will be chaining them to the wall of a dungeon afterwards until they are out of college.
I dislike the idea of aborting fetuses however if you got a zygote brewing and you can't afford it or you will be shitty parents, do society a favor and flush that sucker out (yes I'm being intentionally crude).
On a similar subject, I hate hearing stories of people keeping babies with missing brains or similar birth defects alive. I'm sure it must be so hard for the parents, but keeping a baby with no brain activity alive is not humane, it's a god damn science experiment. I feel the same way about adults with no brain activity. Comas are different. If I'm in a coma pump me full of meds and play In-A-Gadda-Da-Vida until I wake up. However if I'm brain dead pull the plug and let my family start the mourning process instead of dragging it on for years.