I have a theory, and it hasn't proven me wrong yet! I've been guessing babies genders just by going off their 12 week ultra sound pic
Please post your 12 week scan pic & let me know what you had/are having & feed my theory
I'll post two pictures (I acquired from Google) as examples.
Every little girl scan I've seen, baby has been curled up, every little boy scan I've seen, baby has been 'straight' (just hanging out in there