What is the ruling regarding the prayers that a wife missed, thinking that the blood discharged after the miscarriage of the fetus in the first month was nifas (postnatal bleeding), and is she required to make them up?

The blood discharged is not considered postpartum bleeding (nifas), because the miscarriage occurred in the first month of pregnancy, a period during which the formation of a human being is not yet apparent. Therefore, the wife must make up the prayers she missed during this period.