Mellington - It wasn't the NT scan.. thats in 3 weeks, this was just so the OB could get a quick look. He had a little machine in his office.
My FS said they usually try 3 IUI's before moving onto IVF. Sometimes they let you go one more if you really want to, but 3 is the limit ( at Monash anyway!)
I was excited to jab too .. its when you get to finally 'do' something instead of just wait!