Babies hearing

Around week 6 of pregnancy, even though your little embryo is still smaller than a pea, the cells inside her developing head are already beginning to arrange themselves into unique tissues that will eventually be her brain, face, eyes, ears, and nose. By week 9, small indents will appear on the sides of your baby's neck. Although they're not in their final location yet, they will gradually move up and become tiny, curled up, cute-as-a-button ears that you'll gawk over when your baby is born.