Thanks for the comments.
No we do not know what we are having and will not be finding out. This is our third child and we have not found out on any of them. It ruins the surprise. I did ask if the Ultra sound person knew and she said she knew. But we dont want to know.
I am not sure how it works overseas. But in Aus, you generally get one around 20 weeks or so, you can have one earlier if you want to as well. In the ultra sound they look for everything, hands, feet, kidneys, heart, brain, skull, stomach, diaphram, spine etc etc. Very thourough.
I think this is probably the best ultrasound pic out of our 3 so far. Looks pretty clear.
Vegemite - Just say no!!