I know it must be so hard, sonya, when your results come back a little ambigious, but I have seen many women post on BB about low HCG levels who eventually did go on to have healthy pgs. And it hard to know based on comparing just your last two levels, so I know you're thinking of calling Concept to ask for another BT and I think that's a great idea. Please let us know how you go with that. You should still be able to get in today if you ring them right now.