Is this a BFP? How reliable are these Assured Dollar Tree tests??

I took one two days ago and I thought I maybe saw a SUPER faint line. Figured just evap. Took one again just to see.. seems a bit darker. Are these tests reliable. Been trying for a year. Had a miscarriage in January. I'm really scared/nervous/anxious. I wanna be excited but don't want to do that to my heart until I know it's a for sure. So, PLEASE PLEASE be honest with me. I'll probably get a more expensive test (or five lol) once my son wakes from nap. 😬 Here's hoping and praying for a rainbow baby! 🌈