**i know I'm not supposed to do this!

So I know I'm not supposed to do this BUT. I Emptied my bathroom trash can out and saw a test a took a few days ago. When I took it, it was SUPER faint and I chalked it up to being a ghost line that happened to appear in 1 min. And I threw it away. 
This teSt has 2 PINK lines on it. 
I have tested since then and I'm still getting super faint lines (most people don't even see them. ) none of my other tests got darker like this. 
What does it mean? (Below that is the old test) (below this is a test in the time limit with FAINT line)