BFN Clear Blue DPO 9

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So I wanted to wait til my AF the 22nd but I couldn't help to just test one test before that. I feel like if it IS a BFN on the 22nd then I won't be as let down verses waiting the whole time. 
I used a clear blue digital and got a BFN....anybody think that it could still be a BFP? Even if it's DPO 9?