Is this a positive...? And if so, why

isn’t the line getting darker...?

It was also like that yesterday.

I posted it here and everyone told me it was positive.

But now I’m wondering if it is true...?

This FMU ( even though it’s been so hot I’ve been drinking a lot of fluids )

I’m 12 dpo today. Photo taken in the time frame.

I’m thinking it’s too late already for being so weak. Af due in 2 days