Clear Blue Digital BFP & BFN!!!!!! HELP!

StephieLM

I took a clearblue digital this morning and it said 'pregnant'.....I then used the same urine for the other test in the box and it said 'not pregnant'!!!!!!

 Now I'm confused...AF was due yesterday. Two days ago I took 3 dollar store tests and they were all completely negative!

 HELP! Have you experienced this? Maybe I'll run out and get another test...