Quoting lovinthem04:" I am honestly asking how rape makes the baby any less yours? I'm not saying that it wouldn't be incomprehensibly ... [snip!] ... to keep the baby, nor am I saying that you have to keep it. I am just wondering why the baby isn't part of you at that point."
I was never raped myself thankfully, but from what I've seen/heard from those who have been pregnant from rape; they wouldn't want any part of the rapist inside of them. It would be like psychological torture to be reminded that a piece of him was growing inside you, as some women have described it. It would also be tough to look at a child and not remember how she or he came about, which may lead to resentment. And of course, having such feelings towards the child would be very unfair for the child.
I don't agree with abortion myself, and I see myself keeping the baby in such a scenario. But I could never judge someone who chose to do so because of such reasons. Mainly because I was never raped and have no idea what it's like to be a victim of it.
Hope I helped some way in answering your questions. =)