I had my period April 28,2015 and it went off

Patient: I had my period April 28,2015 and it went off May 5,2015 . I’m wondering do I supposed to get another period this month?

Doctor: Hi,Thanks for the query.I understand your concern.Usually menstrual flow for 3 to 7 days can be considered as normal. Sometimes minor deviations from this schedule can be seen.If you are having regular 28 to 30 days menstrual cycles, you may have menstrual period this month.Take care