Does the 'iddah of a pregnant woman end with the miscarriage of her fetus after the death of her husband?

The waiting period ('iddah) for a widow or a divorced pregnant woman ends with the complete delivery of her pregnancy or its complete miscarriage, based on the Almighty's saying: (And for those who are pregnant, their term is until they deliver their burdens).

Ibn Qudamah, in Al-Mughni, clarified five cases of miscarriage that terminate the waiting period: 1. Appearance of human form: The waiting period terminates with this, by consensus of the scholars. 2. Sperm or blood: No ruling is attached to this due to the lack of certainty of it being human. 3. A chewed-like substance (mudghah) without apparent human form, with the testimony of midwives: This falls under the first category, meaning the waiting period terminates with it. 4. A chewed-like substance (mudghah) without human form, with the testimony of midwives that it is the beginning of human creation: There is disagreement on this. The correct view, according to some, is that the waiting period does not terminate with it, as a precaution, and she becomes an Umm Walad (mother of a child to a master). 5. A chewed-like substance (mudghah) without form and without the testimony of midwives: The waiting period does not terminate with it, nor does she become an Umm Walad, due to the lack of certainty of it being a child.

The waiting period does not terminate with the expulsion of what precedes the mudghah (sperm or a clinging clot). The minimum time for the waiting period to terminate is when the pregnancy is delivered after eighty days from intercourse, because this is the time when the mudghah forms. The Prophet, peace be upon him, said: "Indeed, the creation of each of you is brought together in the belly of his mother for forty days as a drop of fluid, then he becomes a clinging clot for a similar period, then he becomes a chewed-like substance (mudghah) for a similar period."