Hi.. I Am 28 Years Old And Unmarried . I

Hi.. i am 28 years old and unmarried . I am overweight.i have a irregular period.my period didn't came for a month so I consult a Dr.she check with ultrasound and also did the test for thyroid, prolactin ,it was all normal.she prescribe deviry but before taking it my period came with heavy flow for around two months .so she gave me crina ncr 10gm for 20 days.2 days before completing the course my period is coming.is there any problem??please help