Hello.. I m of 30 yrs. My last date was on 7th Jan. And then its on 25th Feb (which is too late may be because of thyroid or else reason). Bt then also it was nt proper. Then from 29th Feb it was proper as other times.. Bt till yesterday it had nt been stopped (almost 17days). So I ask my gynaecologist for tablets to stop it. She gave me" texakind" Today it has been almost stopped. She is doing my follicular study, started on 11th day bt she couldn't find clearly as on 11th day I was having my periods. So I want to ask does/can ovulation process, i. E. Formation of follicle, occur during menstrual period. Pls help.