WTF Walmart digital HELP

I’m very confused right now. I tested positive 5 days ago and every day after. I even took a digital a couple days ago and it said pregnant.

I had one left and just took it a minute ago. Came up NOT PREGNANT. Ummm.

I have no bleeding. No spotting. Nothing.

The only thing I can think is it’s because I drank a TON of water already this morning but still wouldn’t there be enough HCG by this point for that not to matter?

Can you have a chemical when you don’t even have bleeding. I’m so confused.