Negative result no AF

Bailee • Bailee&Clayton, hopefully soon + Baby
I'm 4 days late now, I took a test at 2 days late and got a negative.. I had little spotting yesterday like the tiniest bit and it was like rusty brown ... I do have PCOS but I'm on meds for it and I've been keeping track very well I'm on a 45 to 50 day cycle witch is normal for someone with PCOS so Idk what to think...