Ive heard from some peepee that there's a nub theory that you can check between 11 and 13 weeks. If the nub, below the spine, is at an angle greater than 30 degrees then its a boy. Has anyone ever heard of this?
Depends on your ultrasound tech, if he/she can spot it good enough. I was told at 12 weeks it was a boy than later on at 16 and than at 23 weeks, i had them double check lol since its my first boy.