Here’s an interesting prolife argument:
In pregnancy, the baby is dependent upon the woman because the woman put the baby in that situation. If the woman never had sex, the baby would not be in the position it’s in. I would change your analogy to say that the baby needs a kidney because of something the mother did.Here’s a better analogy: Imagine I’m a pilot and while you’re sleeping, I take you aboard my plane as a prank and take off flying. It turns out some defect in the plane prevents me from landing, but there is only one parachute. Should I have a legal obligation to give you that parachute and die if necessary? Yes. I put you in that situation, and I have an obligation to get you out.