WHAT... THE....😵

I am in complete shock and disbelief right now. I had 3 positive pregnancy tests at home. 3! I had two negatives at the doctor. I definitely felt 100% pregnant. I've been pregnant 3 times before so I know what it feels like. I had spotting and then heavy bleeding before my period was due and it stopped the day after. I thought it was a chemical pregnancy. But the blood test showed NO TRACES OF HCG WHATSOEVER! So I was never pregnant?!?! What the hell?! I am so confused!