Positive and then a negative later on?? Confused ladies 😞

I got these (what appear to be positive) you can see it with the naked eye and it has color not grey. This was at 8dpo and earlier in the day so since they were cheaper I got the First Response Early tests and at about 9pm took it and it showed nothing at all.

What is your opinion?

Fluke/false positive on the blue dye?

FRER taken too late?

FRER not as sensitive as I thought? I’m just confused and kinda scared now that I only got my hopes up again.