Dont' laugh at me (lol) I was very impatient this pregnancy, I think because I knew it is most likely my last, and it was so different so I just had to know the sex- so we paid for a private gender at 15+1, which was very clearly girl! I than started reading horror stories (that's what I call them) about gender being wrong that early, paid for another one at 18 weeks and she was still all girl, and than at my anatomy scan at 20w 4days she was still a she! So I say GO FOR IT! and don't believe everything you read on the internet- now with that said I def. did not start buying things until after my anatomy scan (that's personal preference though I don't like to jinx things) but as long as your sonographer sounds sure- than you can probably be fairly confident in what they tell you! good luck!!!