Amenorrhea (missing af)

Hi everyone I just want to share a little of my situation and if anyone could shed any light on it :) so I have been of bc pill since April had 4 cycles haven't had af since July. I've had very little spotting since then. So I  saw a gyno a month ago and just did blood glucose test and internal ultra sound and everything looks normal! I'm just not ovulating! Has anyone else had this problem??? X