Help!

I've been having positive tests since Tuesday afternoon. I went Thursday to my doctor and apparently had a negative urine test. I had a blood test done with hcg quantitative levels of 214. I tested twice today morning and then night and both came up positive quickly. 
I want to make another doctors appointment but I don't want them telling me my test is negative when every time I take a test its positive. (I've tested with every brand as well) 
Maybe my hcg levels were just super low since I was only 3w4d the day I went to the doctor and now I'm exactly 4w.