I'm so confused.

So I took test after test today. All positives. Pink dye first response. 
And then I took a digital first response. 
It said no. 
Like.. they both say they can detect 6 days sooner than my missed period. 
So why couldn't the digital detect pregnancy but the dye one could? 
Here is my dye ones. Vvvvfl. But it's there. Within the time frame... and the digital.. a straight.. no 

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