I was desperate to find out the gender of my bub, too. Yes, I also like to open my christmas presents before christmas day...

You may be interested to know that with my last pg we were told at 12 weeks and 5 days that she was a girl. Confirmed by the sonographer and the doctor. Apparently they look at the internal sex organs and the length and direction of the ureter. The US place I went to does specialise in gynae and obstetric US so the staff are very experienced. I asked the sonographer how sure she was and she said 'as sure as I am that I have two legs'. Anyway, if you are having a 2D US in the next few weeks, you MAY be able to find out the gender.