I can understand your curiosity too. And ditto what a PP said about being Team Green making you more curious. It seems that way for me. Like when you're told you can't have something and that just makes you want it more, lol.
I'm very confused as to why the tech didn't look in that area. Our tech did. He said he had to measure and check the kidneys, and for those minutes baby was practically sitting on the camera. So I'm pretty sure I know what ours is, especially since the tech slipped and referred to the baby by a specific gender later during the scan.
But I still consider myself "team green" because I didn't specifically ask what the sex is. I wasn't told the words "It's a ____", so there's still an air of mystery to it. I feel unless you have someone specifically tell you "It's a ___" then you're Team green.