I think I had 4 ultrasounds and each time they say "I think it's a girl but can't be 100% sure". I decided that this was because Just in case they were wrong I couldn't sue!! I was also told by EVERYONE that had a boy, that it's pretty obvious if it's a boy, and if my girl did turn out boy, she was going to have a very very small boys part!! I think if they do tell you, they're pretty sure!!
How exciting, girls are wonderful!! xoxo