Nervous, please help!

Had our transfer on 11/10, started getting positives 11/14. Tests got noticeably darker ever 12 and 24 hours, from 3 to 4 to 5 days past transfer. Took my test this morning and it isn’t darker than it was yesterday, and it’s gotten me so so nervous. Posted a couple pictures below, top test is 5 dpt bottom test is 6 dpt in both pictures.

I know hcg doubles every 48 hours, but before this they had been getting darker day by day and even sooner so I’m worried. What do you guys think?