HCG sticks vs clear blue -faint lines

Br

Hey ladies,

I am 15dpo, 4wk3days and I am curious should I be concerned that my HCG sticks aren’t really dark? I just found out yesterday that we were pregnant 😊 but the sticks show a faint line and the clear blue both line and pregnant one show pregnant. I saw a slight darker line today on just 1 hcg stick. I went and had my blood drawn today to confirm levels, but trying to prepare myself not to be too excited because we had a mc in November. This would be our second try at hopefully becoming first time parents. I was having light brown/rust spotting when wiping two days ago but that seems to have gone. Just curious if anyone else’s lines on the hcg sticks aren’t super dark? Not having any pregnancies symptoms that I am aware of either, just slightly tired but I think I can always sleep.