Question. Please answer.

Krisdi
I haven't had a period since May 1-6. 
I got one faint positive and two negative hpts. 
I get my quantitative blood test results from the dr tomorrow to confirm. 
Today I had cramps and then a little blood clot and now I'm not cramping or bleeding at all except tiny dots of brown blood. 
Do you think I had an early miscarriage?
Please be honest.