Faint lines not getting any darker! Indents?? ☹️

These are my tests from yesterday and this morning. Yesterday was 10 DPO, today I’m 11 DPO. I know they are faint to begin with, but shouldn’t they be darker by now? I’m guessing just indents... what’s everyone think? Am I just crazy??Thank you!!!

10 DPO

11 DPO