first response & clearblue

So I'm only like 6-8 days past ovulation. I took a red dye clearblue & seen the faintest line. so I took a first response 6 days earlier test & also seen an extremely faint line. I took a dollar store cheapie also but got a very obvious negative on that one. should I trust the dollar store one? could the more expensive ones be indents? I swear there's color but it's so faint that I can't pick it up on camera but can see it in person.... I'm obviously going to wait until my period but was just wondering if anyone else had same experience

also*** the lines were there before the time limit