You are much more patient than I. Our BIG u/s wasn't until Sept.8th, but I found a place nearby that does them for "entertainment purposes" and they had lots of good (and accurate) reviews for gender determination. So...DH and I went Tuesday to declare our team.
Re: this better be a quick 5 days
Aghhh!! Me too!! Well, except mine isn't until the 8th so I've still got a bit of a wait.
Can't wait to hear what you ladies are having though! =D