Disappointing what to think?

So recently I have tested positive on over 20 tests of all different brands and 6 digital tests clear blue and first response. So I made an appointment as I don’t have a regular doctor or obgyn yet just to confirm pregnancy, and I had went pee just two hours before their urine test and it came back negative. And this is so frustrating because I know I’m pregnant. But the nurse who only took urine said come back on a week. I know I need tog eat blood drawn I’m making an appointment but what are the chances of a false positive on a digital?