The law is a blunt instrument in this case. If the law says that the mother must die, she might leave five children behind.
Since it’s so likely that both will survive after 24 weeks — is a law that makes the choice necessary? The instances of having to choose in this case are miniscule — millions of babies are aborted for convenience, not to save a mother’s life.
Depends on what you consider as the basis for determining value. I heard that if a child dies, the child is already with God and saved. If an adult, who has not been saved dies to save a child, the adult's soul is lost to God.
I attended Catholic schools as a child and it was taught that it might be better to save an adult vs. a child for the souls saving reasons. Don't know if it's doctrine or not. Sometimes hard to relate to possible Biblical Truths w/o getting tangled up in human fallibility and the arguments that go with it. I'd probably save the child.