BFP or evap??? Help please!!

Emily
I took this hpt this morning. It looked like another BFN so I just left the bathroom without looking at it again or even waiting for the 3 minute mark. I went to go throw it away and saw this!! Is that a BFP or an evap line?? I've never taken a blue dye test or had an evap line before so I could definitely use some help! Thanks in advance!!