I'm on cycle day 38, irregular cycles for unknown reasons, no idea when I ovulated or when AF is due, but an app I has says AF should have started on cycle day 32 based on past cycles......but all I got on CD32 was a brief bit of brown discharge, just during one visit to the restroom. It looked like old blood. When a few days passed and no AF, I assumed it was implantation? But now my tests look like this, all others (including FRER) have been negative. Am I seeing things or do others see the lines?