Actually, I want to add that it is amazing that they were able to determine the sex so early! Docs here won't try to look until 20 weeks...well, in my case anyways. I found out at 36 weeks that I was having a girl with my 2nd pregnancy because she was flipped for my 20 week u/s. When I moved back to WI, my doc gave me another ultrasound. Did you find out early on with your twins, too?