My husband and I are trying for our third. I got off birth control last month, but this month I didn’t start my period. I have take 134,407,000 pregnancy tests (obviously an over exaggeration lol) all coming up negative. Does it take a while for periods to get regular after getting off birth control? Periods have always been regular previously. Also, my yearly check up for doctors is coming up to check my thyroid. Does that have anything to do with it?