Trying for our rainbow and I’m worried that this line isn’t getting any darker. I’m hopeful it could be okay but preparing myself for it to be a chemical...

First pictures: Right at three minutes it was slightly lighter when compared to yesterday’s tests (the first two, which had been sitting over night)

Second picture: Looks a little darker once all three had sat for a bit - I know you aren’t supposed to read it outside the time in the instructions, but wondered if it could be used for comparison since all three had time to sit.

Thoughts? Encouragement? Or should I count myself out?

EDIT:

1 is 12 dpo am,

2 is 12 dpo pm,

3 is 13 dpo am