Hi, I had a miscarriage at 18 weeks pregnant on July 23rd, 2009. It has been 11 weeks since then, and no period. I took 2 pregnancy tests last week both came back positive, so i called the doctor. Of course they sent me for blood work. I went on wednesday and got the results back today, friday. They said the levels were are below 2, so thats a negative on the pregnancy. do you think i had HCG left in my system from the miscarriage or am i really pregnant and early on??