Wondering what I did wrong

Okay ladies four days before my period I was feeling off so I tested and got a faint line whoooo hooo!!! Ofcourse being my anxious self I had to test a few more times.. some test came out lighter and I was bummed... so here we are 3days from my period and I’m still getting positives of FRERs and vvfl on Clearblue a bit they aren’t getting any darker shouldnt they be? Am I heading for a chemical what the hell is wrong with me?? Help girls!