Help me out ladies: Line progression?

Ka

Would you feel ok with the progression of hcg tests? I guess I should really just compare the first to the last but I still can’t help but feel like the line isn’t getting darker in 4 days and worry a bit about it.

Don’t mind the dog hair that got under my tape lol, it’s my first positive anything after trying more than 2 years so I’m new at this part😂