Pls help me with advice.. positive home test negative blood?

I have been getting vvfls on first responses and also this morning on a amazon test below. I took a blood test after my dr saw the faint line on my early tests and he called today and said my blood test was negative so no way i can be pregnant, my tests must of been faulty. I'm confused because this morning i'm still getting faint lines (period due in three days). Has this happened to anyone? I am calling him back to ask how could i have faulty tests in different brands? I am just trying to understand what's going on. I took multiple first responses from different boxes as well then this amazon one..