Week 36

Your baby is working hard to accumulate all the fat he can, in preparation for delivery. His body is growing rounder every day, since about 15 percent of his total weight is now made up of fat. Once he is born, this fat layer will help him maintain his body temperature and give him a reliable energy source.
* Baby now weighs around six pounds and is 20.7 inches long.
* Major organ development is already complete, such as the kidneys and liver.
* Some fine-tuning, such as the final development of the lungs, is still taking place inside the womb.
* Baby's head is round, but by the time he makes it through the birth canal it may be temporarily a bit misshapen as the soft bones of the skull are compressed by powerful contractions. His head shape will return to normal within a few days. (verybestbaby.com)