Help!! First response , clear blue AND Walgreens brand

I should be around 5 weeks 3 days and my first responses are barely showing up…

Clear blue looks like a dye stealer and same with the Walgreens brand, i’m worried and confused. I thought first response was supposed to be very sensitive compared to other brands.

The two marked with the blue were taken last Thursday the 24th -the ones marked with the red were taken today Tuesday the 29th -

mind you none were taken with FMU

Is first response, not as sensitive what are your thoughts ?