Re: Totally not going to sleep tonight!
If you truly don't want to know sex right now, I would recommend not looking at the screen when the tech finds the baby (in case baby is showing butt first) and ask the tech to keep you in the dark about it and turn the screen away or warn you when he's going to look at the pelvic area.... If not, it is very likely you'll be able to guess the baby's sex if you see the area this far along. It's pretty apparent after the eighteenth week, for the most part.
Veann - Libertarian, atheist, bookworm, heavy metal Mommy to all boys: Lucius (2-13-09), Orion (4-22-11), and Castiel (3-4-13), wife to Matthew - Anti-circumcision, babywearing, somewhat AP, natural birthing/ homebirthing, don't care about being "green", doing things my own way...