Im so frustrated

Cycle day 45 and period is a week late. pregnancy tests are all negative. Im so frustrated. If im not pregnant then i need my period to go ahead and start. This is so frustrating. Ive been to the doctor and they say its fine to miss a period that they arent concerned and that the pregnancytest was negative. Didnt get any bloodwork done because the girl had a hard time getting it so i just left. I feel so defeated.