Well, my beta rose from 18.5 to 25--meaning it is fairly certain that it's a chemical pregnancy. My dr said to come back in Sunday for another beta. And he said something about sometimes pregnancies repairing themselves, meaning I guess that occasionally a non-doubling beta will end in a successful pregnancy. Then again, this is the same dr who told me that 18.5 was a "decent"beta and, of course, it's not even close to being decent.
I wish he were a bit more upfront. It's not like it's my first chemical pregnancy...