The girl is 17, but her age is mmaterial. There is no benefit to her in prematurely killing her unborn infant. None. Whatever is going to “freak her out” about the situation is not going to be allieviated by her adding on the guilt of being impatient in waiting for her child to die.
I thought you asked me for a situation where comforting the terminal infant wouldn’t be a good thing. That’s what I did. I gave you an example.