Is a woman considered sinful for having an abortion after three months of pregnancy, despite doctors confirming there was no danger, and what is the expiation (kaffarah) required of her?

Abortion is forbidden by Islamic law except in two cases: a confirmed danger to the mother's life, or the death of the fetus. It is unanimously prohibited after the ensoulment unless there is a danger to the mother's life. Before the ensoulment, it is also forbidden except for a legitimate Islamic interest or to avert harm. The abortion mentioned in the question has no legitimate Islamic justification. The questioner must repent and seek forgiveness. The blood money (Diyya) is obligatory (one-tenth of the woman's blood money, approximately 213 grams of gold) after the formation of the fetus (in the ninth week), and expiation (Kaffara) is recommended (freeing a slave or fasting for two consecutive months).