Help, so confused!

Ashley.
So AF was due this past week. Still no AF, and when I was at the doctor Friday for something unrelated I went ahead and gave urine sample just to see. It was negative. Still no arrival of AF, and I'm 39 days into this cycle. I usually only go about 34-36 since being off the pill....hmmm super sore boobs, and no AF. How long did it take you to get your first positive?