Lines too faint????

S!

I found out on Friday 10/4 that I was 4wks and 4 days pregnant. I tested each day to see if my lines progressed. The last test is from this morning, but I feel as though my lines aren’t as dark as they should be?? Should I be worried? I had a miscarriage in May so I am very anxious this time around. 🥺

Any advice would be great!