Let me bounce the following scenarios off you, since they're personally relevant to you at this time. (And, just to make it perfectly clear, I hope to God you, nor anyone else, never have to be in a situation like them -- but, unfortunately, some people do.)
(1) You discover only now, 7 1/2 months into the pregnancy, that the fetus is so badly deformed that s/he will not survive childbirth. Should your wife be forced to carry the pregnancy to term, only to have the baby die immediately afterward?
(2) Your wife develops a severe health complication. Your doctor estimates that the odds of her surviving childbirth are 50-50, with the same odds for the baby (meaning, the odds of both surviving are 1:4, the odds of neither surviving are 1:4, and the odds of the mother or the baby surviving are 1:2). Aborting now would almost certainly save her life. Should she be forced to carry the pregnancy to term?
Note: the key word is "forced." In both cases, she would have the option of carrying the pregnancy to term, should she so choose.
(I have previously verified that at least some of the late-term abortions Dr. Tiller carried out were situations like this.)
PS. Unlike Rith, I'm still assuming that you're anti-choice, until you clarify your position and explicitly state that you're pro-choice.