I found out at 15 weeks with my first and they were right. I think it's much easier to see if it's a boy.
Oh really well I ended up booking for 16 weeks x
Just read a post about this women getting a private scan and they were told that it looks like a girl. I think it was around week 14/15. The next ultrasound they had with their doc found out it was a boy instead.
14+4 and confirmed later it was right.
With my current pregnancy I found out at 14 weeks. I'm 27 weeks now and I'm supposed to have another ultrasound by 30 weeks. Guess I'll get a little more confirmation on gender then