I am for saving the mother's life above that of the unborn child when her life is at risk. If there is a chance that the fetus could survive, then by all means try, but if it puts the mother's life in danger, then that is a no from me. The mother's life comes first.
Interestingly, we have solid, tangible, physical evidence that this is also what God believes and wants.
That evidnce is the Uterus. God created the uterus with the PRIMARY function to protect the life of the mother over and above the life of the baby.
Human fetal development requires unrestricted access to a parent's blood supply, which makes pregnancy (and miscarriage) incredibly dangerous for the carrier. The uterus was created to control and restrict whether placental cells can get that access, and to eject it before it develops enough to kill the host. THE FUNCTION OF THE WOMB IS TO PROTECT THE PARENT'S LIFE. The very structure of the womb very firmly prioritizes the life of the parent over the life of the fetus.
It's not a nurturing organ—it doesn't need to be. A fetus is frighteningly good at getting the resources it needs to nurture itself. If they are implanted anywhere other than the womb (most often the fallopian tube, but also sometimes the bladder, intestine, pelvic muscles and connective tissue, and the liver) placental cells will rip through a body, slaughtering everything in their path as they seek out arteries to slake their hunger for nutrients.
Fetal cells will happily grow in any of these places, digesting and puncturing tissue, paralyzing and enlarging arteries, raising blood pressure to feed itself more, faster; but it will be unable to be ejected. It's no coincidence that genes involved in embryonic development have been implicated in how cancer spreads.
Rather than a soft cozy nest, a womb is a veritable fortress designed to protect the person from being killed by the developing cells inside them.
The "miracle" of birth is that we have a protective organ designed to, if all goes well, let us survive it. It doesn't always go well. It is life or death. Someone who chooses to get pregnant, stay pregnant, and carry a fetus to delivery is legitimately choosing to risk their life to do it.
I am unaware of any scriptural, moral, ethical or legal principle that says Government has, or should have, the authority to
require that 1 human being MUST be forced to put their own life at risk so that another human being may live. However, if it can be shown that there is such a principle, in the United States anyway, it would be a 14th amendment violation to restrict the application of that principle to the Mother- Fetus relationship, and instead must be equally applicable to ALL persons, both born and unborn.
The Irony is, even the staunchest pro life advocate would roundly reject the notion that Government should have the authority to require them to risk their life so another already born person may live.