With my 1st we decided we didnt want to know and lukily enough everytime bubs legs were crossed (ended up being a boy) .. This time we had our 18 week scan... the lady said "if i had to guess i'd say girl"... we were happy but wanted more then a guess... I planned another scan for 2 weeks time. Got told it was 60% chance it was a boy. i had gotten excited and it had changed. Then i decided to check agaon... told 70% chance of a girl.... WTF... SO we were were exactly... We could either pick 1 or the other... I decided to wait few more weeks and try again. so we planed 1 for 30 weeks. voila we were told 90% chance it was a girl... i was still cautious so planed yet another at 35 weeks and again the lady said definatley a girl... they were right we had a girl... I'd wait a few weeks get another scan or go some place else. try to get a % but i had a friend who was told boy... brought all boy stuff and had it confirmed it was a boy and ended up with a little girl