4 weeks 3 days advice

So I have been getting positives since 7 days before AF I am driving myself insane testing to see if the lines are getting darker.. AF was now due 2 days ago so still very early. My tests are significantly more prominent since my very first few tests but over the last 2 days I dont feel like they are any darker. Should I be worried. Internet searching is making me so paranoid something might be wrong. I also had a positive 1-2 weeks on a clear blue digital 1 day before AF.. any advice welcome.