prior to the my fibroid operation my periods were irregular.after that they had become regular.but now again they have become irregular. my last period was in dec on 20th dec after which i have not got my periods.i went to a gynac on 22nd feb and she subscribed duphaston 10 mg for 5 days twice a day.the dose ended on 27th feb but i have still not got my periods on 4th march.i am not pregnant that is for sure..please advice what ahousl i do now.