Possible invalid test?!?

Kiana

Hey guys im 11dpo and as you can see im still getting a BFN but can anyone else see the vertical like going straight across the bottom of it all or is that just me and i have line eyes. I know its negative so im not trying to see a positive and a positive wouldnt show up like that on these tests anyways i just need help understanding what it is im seeing..maybe an indention idk for sure. Pic below: