Are all blue dye tests false positives

Mackensie

I'm 5 days late for my period. I'm having some pregnancy symptoms (nausea, fatigue, backache, acne, and I'm hot all the time) I've been testing for about 6 days and I've gotten some positives and some negatives. I can never get a dark positive though. I'm not usually late with my period and I don't know what's going on with my body I don't feel normal! I have a blood test scheduled for next week but somehow I feel like it's going to be negative and all these tests tricked me. I need input please I'm going crazy!