A woman has her shoest cycles of 26 days and longest cycle of 31 days. Calculate her unsafe period using Rhythm method ?

Rhythm method: Aka calender method / safe period method / feile period method. Unsafe period = (Shoest cycle -18 days) to (longest cycle-10 days) Given shoest cycle = 26days; longest cycle = 31 days Unsafe period = to days = 8-21 days.