Wow, I feel this thread has a totally different tone from what I read on the first one (though I only read the early bits of that one).
I agree with the majority feeling here - the woman's feelings should not be disregarded here. Her and her mother's (assumed) feelings that this advanced pregnancy is a baby, not just a clump of cells, should be respected. There's no way we would insist that such an advanced (clearly wanted) pregnancy isn't really a baby, no way we would say that to a woman who had a distressing late miscarriage. To intervene and prevent something which would be the natural consequence against the wishes of those involved, however neuro typical or otherwise they might be, seems barbaric.
But I appreciate I am talking from a position of ignorance about all the facts in this case, and there might be many more complicating factors.