How To Regulate Menstrual Cycle?

hello dr.i am 25 yr old male.i got married before 3month.i have irregular periods for past 6months.i went 2 dr she suggest me to 2 take meprate for 6 days after dinner.i took that from 31-5 nite..bt still now i didnt get my periods.dr took pergency test its negative.how can i get my reggular periods?