11dpo line the same as yesterday?

I wasn’t going to go crazy and test for my lines getting darker but here I am. I got my first faint line yesterday afternoon. I did a few brands and all had a light line except frer.

Why would frer not pick it up?

I tested this morning and it’s the same as yesterday- maybe even lighter.

I shouldn’t be concerned right bc it hasn’t even been 24 hrs?

I had twins last 8 years ago and my line progression was a lot each day but that’s probably bc there were 2.

Can someone give me positive stories of early lines not getting darker?

Also frer was negative again this morning