I'm freaking out about my levels also. I also received a BFP 2 weeks ago. Last Wednesday (8th) I went to the er with abdominal pain and spotting. My hcg levels were only 50 (also nothing was showing on my scans) they said it was not consistent with my lmp that I may have miscarried or in the process. I was trying to explain to them that I am irregular and may be earlier that 6 weeks. Well today I went back and my hcg levels are at 200 but still nothing on scan. Could it be that maybe I am just really early? Has this happened to anyone?