MrsW, I had been BBT charting for few months on the suggestion of my endocrinologist before seeing my FS, so that indicated I wasn't O'ing. FS did order a day21 test which did confirm I wasn't O'ing, but FS had already written a script for clomid. I haven't even tried OPK as I have PCOS and have heard there are false-positives. I have had more day21 tests which confirm I do O, and bbt chart also indicates that. I guess things work different for all of us
Also been using pre-seed since TTC.
It can be very frustrating getting your point across to your FS. But hang in there