I'm very confused please help

Marcia • Wed, Sep 06

On 9/3/17 I took the first test and at first it was a shadow then it got a little darker. Then the next morning same time I took a digi one from clearblue and it said not pregnant ,later that day I bought a first response one which is the second one in the picture and it shows negative. I'm currently 6 days late with AF and have very sore and sensitive breast I'm so confused