abortions from even those scenerios are wrong. the baby is just as alive then as if they were in the womb of a pro-life, loving mother. the only gray area when it comes to abortions i'd say is when it's likely both the mother and baby will die, but only if that's more likely than them living.
there's one thing that no one mentions but would solve almost all problems, but i forget what it's called. i think it's called surrogation, but i could be wrong. if it's in the case of rape, incest, etc, and they catch the pregnancy early-on while the baby is still in embryo form, the mother can safely have the baby implanted into someone else who will love and care for them. there's plenty of women out there who long to have children but can't, so why don't we ban abortions but replace them with surrogations? the baby would live, the mother would be able to choose, AND another couple would be blessed. win-win-win.