Your baby’s crown-to-rump length is 5.2 to 6 inches this week. Your baby weighs approximately 7 ounces and will increase its weight more than 15 times between now and birth!
Most women can feel their uterus about a half of an inch below their bellybutton at this point of pregnancy. If you turn to the side, you can really tell that your body is changing! Most women have gained up to 14 pounds now and only 7 ounces of that is your baby! The placenta weighs about 6 ounces and the amniotic fluid that surrounds your baby weighs 11 ounces. Your breasts have increased in weight by 6 ounces each and the uterus has grown to 11 ounces! You may be gaining weight in places other than your abdomen and this may be affecting your posture and sleeping habits.
One of the most amazing aspects of your baby’s growth and development is that of the fetal brain. Your baby’s brain is one of the first organs to appear. Your baby’s oversized head shows the brain’s importance in his development. Because the nerves that connect the muscles to the brain have grown into place, your baby’s movements are consciously directed. Your baby’s ears stand out from the sides of the head and the buds for your baby’s permanent teeth appear. Your baby’s arms and legs have reached their relative proportions and his feet are approximately one inch long.