Also, as I’ve written, a fertilized egg is not the same as a baby. In your thought experiment, if, rather than an infant, there was a doctor in the cabin forcing a women to undergo IVF, then it would be what outlawing abortion really is — forced pregnancy and birth. And I would say, obviously she does not need to do that.
Side note: her home/food is all provided. Not trying to romanticize the scenario AT ALL, but wanted to mention that actual people in real life don’t have a home and food provided to them if they choose to be pregnant.
I mention the organ-donation as something invasive that perhaps someone who’s never been pregnant could imagine (though a one-time surgery still is not as intense as a 9-month pregnancy plus birth), but regardless of my attempts to remind people we are never required such extreme (unlike feeding formula) uses of our bodies for other humans, a fertilized egg is not another human.