Advice please :(

My period is 10 days late now and it’s starting To concern me. I’ve had my fair share of stress induced late periods, but typically only by a day or two. My last period was in October, and I hadn’t had sex for 1- 2 months before that... I’m not on any new meds, haven’t lost or gained weight, and I haven’t changed anything about my diet/exercise recently. i also received a call about an abnormal Pap smear AND ive taken 2 pregnancy tests just to confirm, and they both came back negative.

Advice? Should I be worried?

I have an appointment scheduled tomorrow to see my Obgyn