I have severe PCOS and rarely get a period, maybe once or twice a year if anything. 2 weeks ago I had unprotected sex with someone, and about 5 days afterwards I began experiencing some cramping, nausea, heartburn, and hotflashes. they lasted a few days, and now I've just been left with some minor cramping and a brown/light pink color when I pee. I took a test and it was negative, could my PCOS cause false reading on a hpt?