Thanks for your query.
PCOS is characterized by anovulation
, and irregular periods
The periods are delayed, and there is endometrial hyperplasia
( overgrowth of the lining of the uterus ) when one does menstruate, the period is heavy and painful.
Duphaston is given to regulate the cycle, however, it is a progesterone
preparation that further acts on the lining of the uterus to make it thicker.
Hence it is natural, for the first time, to have a heavy and painful period.
You should definitely consult your gynecologist for further tests such as hormonal tests - FSH, LH, thyroid profile, adrenal profile, blood sugars etc.
Also, weight loss
, lifestyle management are important aspects of treating PCOS.
Various other treatments based on your reports maybe given, also.