I had my nuchal scan in early december, and when I asked the tech to loook between the legs, she said she would def say boy because, in her words, "there is a lot going on between the legs". I pointed out that I could see 3 lines clearly, but just that they were long ! But she said no, it looks like a boy. I came home a bit deflated, and started to watch the dvd over and over. The nub to me looked girly, and got mainly girl guesses on it.
I booked a private scan at 14w5d, and straight away the tech said it was def a girl. She checked over and over from all different angles, because I couldn't believe it! At each U/S since, they say it's certainly a girl, but I'll believe it when she arrives. I just can't believe it after 3 little boys!