Has your period ever been SUPER late?

So, I am a thirty two year old happening babe, and although my periods weren't amazing on time every month, I varied between 25 - 35 days between. I am now currently 52 days late, all pregnancy tests negative ( phew ) PMT is constant, and my smear is up to date. I don't feel more stressed than the next happening babe, but my job requires me to walk and lift heavy items for ten hours a night, doing about 40,000 steps a night on average. My overall health is fine, my doctor confirmed that and he told me to come back and see him after 65 missed days. Sooooooo, has anyone else not been pregnant but been SUPER late?