evap or BFP??

Mamatoruben • 💙💗💛💚
My period is 1 or 2 days late
I took this test with 1 hour hold
The line was there Straight sway but faint
Then after 15 minutes it was like this strong.
Is this my BFP or evap????? Can an evap look like this?? 
According to my app I would be 4 weeks if pregnant. 

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