jbrd I second telling your boss. Mine was the first to know this time (apart from DH), because I knew I'd have lots of antenatal appts before it went public, and I didn't want to have to go through the whole "I was pregnant now I'm not" conversation for a third time. You can explain that you don't want to make it public yet but you will tell her when its official. Unless she's a prize cow, of course, in which case I'd tell HR instead.
Just read a horrid post on the mc boards from a lady who doesn't trust her HR not to tell everyone that she had a mc, so doesn't want to say anything, but they're refusing to accept her Dr's note without an explanation. I know a lot of people struggle with HR issues, but seriously? I can't believe some people are that shit at their jobs, I really can't. 
Equally, I'm v impressed with the staff at the Lindo wing. To have kept news like that quiet for 4 hours is pretty good (I know, patient confidentiality is part and parcel but still, I think its impressive).
Fab news saggy on the presence of an alien life form. Long may we continue to spawn little parasites in our uteruses. (Except for you, Gary, I hope its not long at all).
Stats list update time?