Can HPT get light if your having a miscarriage

I’m neurotic and still take HPT’s at 6w5d but hey, I know I’m not the only one! Lol. I took one last Saturday that was really dark and then took one again this morning because my symptoms lightened up a little and I was just curious. My one today is a tinch lighter than my one on Saturday. I know I probably look dumb AF but I’m curious what it means if tests gradually get lighter when your 6/7 weeks pregnant. My picture is attached too, I may just have sore eyes and it’s just me overthinking that today was lighter. BTW today is 37 DPO and Saturday was 32 DPO.