Blood HCG

Hi ladies, so I was very stupid and may have just created more stress for myself... I posted yesterday about my VFL on a blue test. Took 2 pink/red dye ones this morning and both VFL as well. AF isn't due until Friday/Saturday. I went for a blood test this morning and it came back with a reading of 6... This falls around the correct reading for 3 weeks, which is where I would be about now.. But now I'm stressing that it's too low or I tested too early and stressing my ass off for the weekend if/should AF show up and this was just a chemical... Anyone tested so early and it was still viable?...