<prompt> A woman has her shoest cycles of 26 days and longest cycle of 31 days. Calculate her unsafe period using Rhythm method ?21-Aug20-Sep19-Aug22-Aug  <response>: 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. 