Test lines after early loss

I have been bleeding off and on the last 3 weeks and my blood test shows low HCG and Progesterone levels. My dr thinks I’ve had a chemical pregnancy or very early miscarriage. I go back next week for another draw to make sure my levels are lowering. Is it normal for my test lines to look like this? They are not fading like I anticipated and this makes me nervous this could be ectopic. Anyone had a similar experience?