Indents, faint positives, or bad batch?!

The first image is from the day before yesterday. I know it looks like basically nothing but I think I see a very very very very very faint line? I had someone tweak it for me and could see it even better. The next day I took another test first thing in the morning but saw nothing. I took a third test in the afternoon and got that second image—still extremely faint but I see something. Then I took a fourth test this morning and couldn’t see anything again.

Does anyone else see what I see in those two tests? Are these indents or could this be a bad batch of tests? I’m 99% this isn’t it since I saw stark white after both morning tests, I’m just super confused right now 🤷🏻‍♀️