>After 24 weeks, there should be no exceptions for the mother’s life.
There must always be an exception for the mother’s life. Maybe there is an alternative, but if not, the mother’s life trumps all.
Yes. A mother is needed by her other children.
Once the child has reached viability, there really is no rationale for "exceptions to save the mother's life." Abortion, especially further along in pregnancy, is extremely harsh and invasive, and carries a high risk of harm to the mother. As far as saving the mother's life is concerned, I can't think of a situation in which the mother's odds would be improved by ending pregnancy in a way that is fatal for the child.
A gynecologist told me of one patient she had who was in grave danger of bleeding out. So she scheduled a C-section for the patient, and made extra preparations "just in case"--specialists, blood for transfusions, additional staff, etc. And when she did the C-section, because of all the preparation, the patient and baby did well and did not need transfusions or ICU care. That mother would have been in equal (if not greater) danger of bleeding out had the baby been aborted.