I can't help but to do a lot of research on U/S and what to look for as far as gender goes I've even been looking at U/S's on youtube to gain knowledge of what to look for. I know well what a boy looks like, they're just a bit too obvious... But lil girls I hear are a bit more harder to determine. Not sure the truth in that cause to be either somethings there or there's not!! LOL Ughhh... I need these 3 weeks to go by QUICK! Before I drive myself crazier!!