By the end of this week, your baby is considered full—term. He or she isn't quite done growing yet, but the rate of weight gain has slowed. As fat is being laid down, your baby’s body is slowly becoming rounder. A baby's gender seems to play some role in determining size at birth. If you have a boy he'll likely weigh a bit more than a baby girl born to you at a similar length of gestation.
Your baby could arrive at any time from now until the end of week 42, so check that you have everything organized. You will probably be given the chance to visit the hospital and see where you are going to give birth. Don't be afraid to ask questions if there is anything you don't understand about hospital procedures. Sometime between now and the birth, you may experience a sudden burst of energy, known as the nesting instinct. Don't overdo things and decide to spring-clean your whole house. Remember that you will shortly need all your energy reserves for the exhausting demands of labour.
The lanugo, the fine hair that covers the baby’s body, is beginning to wear off. The baby has started to produce a hormone called cortisone, which will help the lungs to become fully matured so that they are ready to cope with breathing once the baby is born. The baby will be practising breathing although there is no air in its lungs. The baby is now about 19.1 inches (48,6 cm) long and weighs around 6.3 pounds (2,85 kg)