When I went for my second blood-draw today, they gave me the results from Tuesday.  The beta was 38 for 15 DPO.  This isn't good news.  There are lots of possibilities and what-ifs that could be thrown in, but I'm trying to not get my hopes up.  Maybe I didn't ovulate until Tuesday or Wednesday?  Maybe it implanted late?  I'm going to try to remain as zen as I can.  I have such a rotten cold that I don't really have the energy or fortitude to do more than the one big cry.