is it a faint line or test malfunction

Simone
I took a test this morning and was watching it and the strangest things is it looked like it stopped absorbing after 2 thirds of the way because it goes dark and then lightens and i don't think it reached the end. Is that even possible?? If this is what happened then the second line could be where it tried up. I will do a second test tomorrow but the uncertainty is making me a bit ill. Am i crazy??