Last year I was preggers with my third. I was told my levels did not look that good but to wait it out. Then I started spotting. After a slew of transvag u/s I was told that the baby wasn't growing as much as it should. Then I started bleeding (I was 10 weeks @ this point). At the hospital I had another transvag and they said they didn't see any bleeding coming from where the baby was. I was so relieved! But then I had to go back to my doctor a few days later. There was still a heartbeat and the baby was even moving a little. However it looked as though the embryotic sac was smaller. I was sent home and but on bedrest the whole weekend and had to go back the following Monday. My doc told me not to expect a happy ending.
Unfortunately on that Monday there was no heartbeat, my baby died and I had to have a DNC.
Probably not the story that you were hoping for but I figured if things turn out well for you that you would appreciate your little blessing that much more.
I wish you all the best during this very difficult time. I know how hard it is to just "wait and see." It's AGONIZING! You can read some of my posts on it if you want to. I wrote them in June of 2009.
Good luck and I'll be praying for you!