5 weeks 4 days but clear blue digital test still 2-3

Lucy

I just took a clear blue digital test expecting to see 3+ but it still says 2-3 weeks. I am really worried. I know the date I 100% conceived so my dates can’t be wrong. I am 5 weeks 4 days. Has this happened to anyone else and had a healthy pregnancy? Really worried a miscarriage is impending