I could use some advice...

I am currently 18 years old and had been on the pill for almost 2 and a half years now and my period has gone MIA for the last 3 or 4 months (didn't track very well) I was usually really consistent and knew the start day because of the pill. In August of last year I began getting very stressed due to a position I held in one of my organizations. In Feburary and March I got some news that really stressed me out and I think that's what caused it. I had safe sex at the end of March (thinking just maybe, but I think this stressed me out more) so being the person I am I took a cheap Walmart text and it was negative.... now it's been two months since I took the test and graduated high school and most of my stress is gone but my period

still isn't back (i skipped most of May to put my body back to normal but have been on the pill for the 26 days and I'm expecting it to be back in two days) I was going to talk to my doctor at my physical that was scheduled but for college they didn't need one so they cancelled it... I just need some advice on what to do. I have also researched polycystic ovarian syndrome and i think i may have it...help???

Picture for attention