is this normal?

I’m about 7 days passed my missed period. I finally got a positive test yesterday morning w/ fmu, somewhat faint but most definitely a bfp. I tested again this evening & I can barely see a line at all… would using fmu make this much of a difference still? I did take a hcg blood test at the dr today and should have those results tomorrow at least but I’m just kind of freaking out as I’ve had two mc already.

(attaching pics yesterday morning vs this evening for reference)