Is this normal??

Aiema

I feel like my 16 dpo test should be darker then my 15 dpo test… I took my 15 dpo test yesterday morning on the 9th at 5 am then just took 16 dpo about 25 min ago so around 9 pm on the 10th… I know they double every 24-48 but i don’t know 😩 maybe I’m overreacting has anyone 16 dpo tests look like this like their 15 dpo I feel like k should’ve got a dye stealer almost 😩🤞🏽