Took a pregnancy test yesterday, and I swear I see a faint line(pictured) BUT then I took 2 more and…

Took a pregnancy test yesterday, and I swear I see a faint line(pictured) BUT then I took 2 more and there’s no second line at all. I am SO confused. Any opinions? Could it be an evap line if it showed the faint line within seconds and you can still see the line even now?