Nothing, but "no baby yet." And we don't anticipate one anytime soon, as much as we'd like the little one to make an appearance. Zander came the day beofre his due date -- actually just a few hours before, so nothing suggests that this baby will come earlier than that.
Related, I think 'due dates' in general are somewhat hooey and that babies are like fruit -- they all ripen at different times. (I did not come up with that, but read it somewhere.) Go ahead and try to tell that to my OB though!