I’m an OB nurse. I haven’t seen any laws come across in the US yet that do not make an exception if the mother’s life is in danger. An ectopic pregnancy isn’t legally considered an abortion because it’s not a viable pregnancy. Placenta previa often resolves on its own, (think of drawing a dot on an expanding balloon, it moves north) and if it doesn’t you’ll need a c-section, you can’t really prep for that. It’s basically the placenta blocking the cervix. Fetal demise isn’t an abortion because the baby is already gone. We would induce labor. I don’t know what you mean by a partial miscarriage, but if the baby is gone a d&c or induction of labor isn’t legally considered an abortion either. There are other issues that will need to be considered like hydrops, anencephaly, uterine cancer, placenta percreta… but all of these are covered in current trigger laws because an early delivery to save a mother’s life is not the same as an abortion.

An abortion is killing the baby through active means while inside the uterus by saline burning, pulling it apart in pieces with forceps, or delivering the feet and suctioning out the brain through the base of the skull while the head is inside the pelvis. If a mother’s life is in danger, we don’t have time for any of that, we deliver and NICU will assess the baby and make decisions with the family on life saving measures.

In all of your examples though, caring for all of those mothers would still be legal even in the most restrictive states.