@Tetragramat in my language, any time a baby comes out dead it is called an aborted pregnancy, even if it wasn't a doctor that killed them
Is that not how it works in english?
Nope, you have a bit of a misunderstanding going on. More below, but Kakeru & Chisa gave birth to healthy balls of magic energy that vanished shortly afterward. (They lived long enough to for them to name them even.) So instead of abortion it was birth & depression at losing a child. Call it the pregnancy chapter instead, as that's accurate.
Aborted isn't the same as abortion. An aborted pregnancy is one that ends without the baby being born alive. An
abortion is a pregnancy ended via a procedure or taking medicine to do so. Not all aborted pregnancies are abortions.
If the mother did absolutely nothing wrong and the fetus dies, that's a miscarriage. Those are very common, most miscarriages are never noticed because the fertilized egg fails to implant. Because that happens so early in development, the mother never notices. Miscarriages that happen later are quite traumatic for the mother and can physically endanger their lives. All miscarriages are aborted pregnancies.