I heard you can get a gender blood test and they're not that expensive! :)

A nub is just a way of determining gender since they are so similar around 12-14 weeks, if the nub points up from the spine at more than a 30 degree angle it's supposed to be a boy but if it's less than 30 degrees more parallel to the spine it's though to be a girl..but I clearly don't know what one looks like lol

Nub?

I can't see one either

Sorry I don't see the nub in this photo.