Test difference?

So I'm a POAS- please no stop testing comments

So I did a test this morning and then one this afternoon, morning one was dark so was happy, the afternoon one was not- which I'm confused about because my pee was super dark due to not going all day....so I held a 2 hour pee and tested again and the line was better but not as dark as this mornings when normally my evening ones give me the darker line....

Supposed to be 6 weeks tomorrow and had one miscarriage in past so super worried

Tests in order I took them

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