Hi Dr, my periods are irregular and later found it to be due to PCOS. Initially, doctor has suggested me to take duphaston if I don t get periods after 35 days and if the urine pregnancy test is negative. This continued for almost 9 months but there is no regularization of periods or pregnancy in spite of doing regular exercise and walking . So, we thought of starting the treatment with siphene 100mg tablet , followed by follicular scan. I have taken the tablet from 2nd to 7th day of my period and started follicular scan from 9th day . Now it is 20th day , but there is no egg released yet, endometrium lining has grown up to 11mm thickness . Could you please help us know if this is something common with PCOS and what is the next procedure to be followed.