C.S.
Hi C.K!
I would definitely call your doc. I have PCOS, got off the pill, had 2 regular periods 36 days apart, then missed my third. I took 5 at-home tests, all of which were negative, and thought surely it was just my system messing up again. It wasn't! My at-home test didn't show positive until I was 4 weeks~I am 6 weeks today. Getting confirmation from your doctor will relieve a lot of stress!!
Best wishes!