Dollar store pregnancy test, faint lines.

Juanita
 
I took a blood test at 2 days late and it was negative. Here are my results after 8d late. This is also a dollar store test. First time ever buying these and they look a little faint. Maybe I'm tripping. Should I just wait a couple days and test again with an official test?
Has anybody had an experience similar to mine with a dollar store test?