Well I found out the sex of my boy at 6 months..they say to wait until 18-22 weeks because its way more accurate. The boys also develop they're boy parts fully at about 20 weeks..you're baby is still very small at 12 weeks..
No. the boys testes do not even descend til 15-16wks. It would literally be the same as flipping a quarter and guessing heads or tales.
No they might guess but dont count on it