Ovulation confusion

An
Having a very confusing Clomid cycle, got positive OPK, and had ultrasound scan that looked good with many follicles of atleast 2 that Doctor predicted would ovulate around same time as the positive OPK. But since then no period, BFN and temps that are not elevated, more all over the place :( if anyone has had similar experience or any insights or advise if appriciate it! 
Thanks!