Not the original poster, but I would enjoy seeing you rigorously prove that pro-choice views are incoherent. My views:
All human beings should have a right to bodily autonomy. This includes the right to deny the use of their body to anyone, even if the person who is using their body is doing so in order to survive, and even if they’ve previously permitted that person to use their body. If the use can be ended without killing either party, that should be preferred, but if not, then the person being used should still be able to withdraw access.
The real world is messy, obviously, so we have some ambiguity, but in general, this is the guideline.