I had another ultrasound yesterday, and things seem to be right on track.  The girls' approximate weights are 2lb4oz and 2lb6oz, and this is my 27th week.  They said that is right on track for a singleton, so I think they might be a ~little~ ahead of schedule for twins.  Yesterday someone came into my office who is due to have her baby tomorrow, and she wasn't nearly as big as I am - and I still have 2 months to go!!  Ugh.  I feel like a whale!  (Not used to that - I've always been really small and this extra weight is hard to carry for me.)  I'm not complaining though, and I know it is going to get much worse before it gets better! ha!