Normally the period cycle ranges from 21-52 days. Women usually have a period cycle of 21 -30 days. Some can have a very short cycle of 21 days. Whereas some have a very long cycle and get periods every two months. These women typically have periods after every 52 days.
Thus, the normal period cycle for women ranges from 3 weeks to 7 weeks. If periods come before 3 weeks or after 7 weeks and 3 days then they can be considered as abnormal.
