As regards to ovulation , it generally occurs 14 days prior to the expected menses.But i think, since you are 35, you should go for a follicular study
from 1oth day onwards to exactly locate the day of ovulation. Well you can go for duphaston
on days following ovulation for 10 days.But if you are not planning for a follicular study and taking clomiphene
empirically, you can start duphaston from 16th day onwards for 10 days, but restrict to max two/three such cycles.
As regards to endometrial polyp
, if you are failing to become pregnant within 2 to 3 cycles of clomiphene therapy, then please go for a polypectomy
. good luck