Skin and muscles may give way faster to accommodate your growing uterus and baby. This means you show sooner and feel bigger. How Your Baby Is Growing and Developing As you can see in the illustration on page 126, by this week your baby's ears have moved from the neck to the sides of the head. Eyes have been moving gradually to the front of the face from the side of the head. The neck continues to get longer, and the chin no longer rests on the chest.
Sexual development continues.
The external genitalia are more developed, and it is becoming easier to determine male from female by looking at external genitalia. Skin tags are small tags of skin that may appear for the first time or may grow larger during pregnancy. Moles may appear for the first time during pregnancy, or existing moles may grow larger and darken during pregnancy. If a mole changes, it must be checked. Some women are concerned about tests that use radiation during pregnancy.