Low HCG and bleeding?

Lisha
So I took a pregnancy test a week ago: faint positive. 
I was so excited but could hardly believe it so I took another 4 days later: darker positive. 
That same day, I started spotting. It went from brown and light to red and somewhat heavy (light to medium period).
My husband took me to the ER at 3:30am and they said everything seemed normal since I wasn't having pain. Right before I left they gave me the results of my blood test and HCG was at 9. The doctor basically said expect the worst but hope for the best. 
Getting another blood test in 2 days.
Anyone else experience this? What was the outcome? They said I could be really early in my pregnancy, but would my home tests have detected that early?