pregnancy opinions, help, experience

Erin
I tested last Wednesday and every day since and have had all positive tests, I had been spotting Monday and Tuesday and Wednesday, then Thursday and Friday it was heavier and red. I still had positive tests, multiple a day. (I'm obsessed) Today I tested at 8 am and it was positive, went to the dr at 1:45 and he had 2 negative. Like no line, no faint line, nothing. Came home and tested again and 3 positive tests. All different brands and types. He said it may have been a chemical pregnancy or early term miscarriage again. He did blood work that I'll get back tomorrow but I'm confused. How am I getting positives and the dr gets negatives and I get positives again????