This is a bad premise: the food, water, shelter and protection in the womb are the same things the newborn, infant, toddler, and pre-schooler, pre-teen require from the mother, father - someone - until it can survive on it's own, period.
Here's the basic difference between fetus or zygote and baby; the 20 year old who doesn't want to be pregnant for whatever reason and that same 28 y.o. female when ready to have a family who never says "we're having a fetus" or "oh, the little zygote is doing great" or "my friends are throwing a cheeto blob shower for me!" It's why we'd innately be pissed at a pregnant women with a cigarette and margarita in her hands regardless of her pregnancy term.
We all know it's human life, that given the opportunity will most likely be birthed and perhaps post on VN some day. 24 weeks is arbitrary disregard of that human life, established to justify a barbaric practice that could be reduced to a fraction of its number with contraception in a time in which it has never been more available. The woman chooses what to do with her body irresponsibly, then it's no longer just her body but two.