Hyperthyroidism

Stephanie
I was diagnosed with it about 2 weeks after my period on dec 22nd. Now I haven't seen my AF since dec 22. My hpt keep coming out neg. I've always had a regular cycle so now I'm concerned. Anybody with hyperthyroidism ever had a period skip out of no where ? Was hoping for a BFP;( I have a gyno app in 3 days.