Baby wouldn't cooperate

Rachel • Mommy to a 9 yr old, 6 yr old and one angel baby. Our rainbow baby was born 12/30/15 and is almost 2 years old. Just found out we’re expecting #4 on 8/1/18
Went in for my anatomy scan today. Baby was in a breech position and refused to be moved no matter how much the tech poked and prodded. We were able to see that baby is growing well but it wouldn't show us whether it was a girl or boy. Go back in two weeks to try again. I can tell already that this child is gonna be hardheaded!