Vaginal bleeding experienced by a pregnant woman is legally classified as which of the following?

Post-Natal Bleeding (النفاس) & Chronic Bleeding (الاستحاضة)

• Menstruation (Hayd)
• Post-natal bleeding (Nifas)
• Chronic/dysfunctional bleeding (Istihadah)
• Heavy physical impurity (Najasah Ghalizah) only