3d rendered medically accurate illustration of a fetus in week 18

Your baby is 5.5 inches long. He weighs over 150g.

A protective covering of myelin is forming around his nerves, as his nervous system continues to develop. His senses of touch, taste, smell also continue to develop. This process will continue for a year after he’s born. For girls, her uterus and fallopian tubes are formed. For boys, his genitals are formed, and noticeable now. His hearing is growing more acute, enabling him to hear sounds inside of your body. The baby continues to make movements with his body, and you might start to feel them now.He is getting big enough to press against veins in the back of your abdomen. This can reduce blood flow to the mother’s heart, so please sleep on your side.