You can look at this the other way; why force a mother to give birth against her wishes to a rapist's child who raped her against her wishes? Isn't that wrong, too?
Yes, ideally, like I've said, there would be no abortions, I agree. However, what I am saying is that a woman should be (legally) able to choose, because abiding by Christian teachings must be a matter of choice, not a matter of force.
If a woman does not want to carry and give birth to a rapist's child I believe she should have the legal right to abortion, however, if she came to me and asked me 'what should I do?', I would present her with exactly the same argument as you've given me; ''Well, the child is just a child -- an innocent human being''. The raped woman was just an innocent human being, too, Kenneth, and neither forcing her to bear labour or aborting the innocent child make the situation any more right.
I can support a woman's right to choose her own path in circumstances like that, even if I harbour some aversion to the idea of abortion itself. And I can do so because I care about the innocent woman who has been put in that situation, and of course I care about the innocent child -- it saddens me to think of a child dying anywhere in any circumstances -- but it must be the woman's choice, otherwise we would be forcing women to bear children concieved against their wills and I think that is horrendous.
I think forcing them to bear those children is just as wrong as aborting the children; it's not an easy decision to make but women should have the right to make it themselves in such circumstances.