Retest idk 😩

Girls so I restarted yesterday in the afternoon but it looked like bfn. But then I'm the afternoon I took the way apart 😂 and saw the faintest line to where if I took a pic you couldn't really see it. I just looked at it again this morning and it got darker? Do evaporation lines get darker? It looks really pink. You couldn't see the faint line through the window when I took it but when I took it apart it was really faint? What do you guys think I'm going insane 😭