PCOS, period 2 mos. late, preggy symptoms & no positive test

I was diagnosed with PCOS in January of this year.

I have a 10 year-old-son who was conceived 5 months after I got married, so I know I CAN have children! Since he was born, I hadn’t had regular cycles, even skipping months at a time w/o being preggy.

After being diagnosed, my OB/GYN gave me a prescription for progesterone to get my cycle started, and Metaformin to treat the PCOS. Since February, I have had a regular cycle about 29 days long, starting on the 25th-26th of each month like clockwork… that is until July. So now I’m two months late, and have a long list of symptoms indicating possible pregnancy: frequent urination, exhaustion, headaches, backaches, an achy full feeling in my pelvis, darkening and growth of the areolas (complete with Montgomery glands!) nausea, sensitivity to smells, food aversions of food I normally love (chocolate, Mexican food, and eggs, for example), and cravings for milk and cereal. (Which I normally like, but don’t love!). Oh, and I also had what I think was implantation bleeding 2 weeks after my last period. I thought it was my period that started early, but it stopped mid morning!

I have read on different feeds that women who suffer from PCOS often times get false readings on home pregnancy tests. I’m hoping that is true, since I’ve taken 4 different tests weekly since the middle of July and all have been negative. I do have an appt. with my OB/GYN next Tuesday, but I just wanted to see if there could be a quicker answer whilst I wait!