Is a woman considered to be in a state of nifas (postpartum bleeding) if she miscarries a fetus after 80 days of pregnancy, given that the fetus died five weeks earlier (after 45 days of pregnancy)? And is it permissible for her to fast and pray?

Abortion blood is considered nifas (postnatal bleeding) if human creation, even if subtle, is apparent in the miscarried fetus. The woman should abstain from prayer and fasting until it ceases. The duration of nifas is forty days, according to the sound opinion. If the bleeding stops before then, she has become pure. A woman in nifas must make up for missed fasts but not for missed prayers.