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Your Developing Baby, Week by Week

Your baby begins as a tiny cluster of cells, but during the nine-month process of pregnancy she becomes an amazing baby with facial features, a beating heart and kicking legs. Find out what's happening with baby's development week by week.
week 36 Week 36

Your baby is working hard to accumulate all the fat he can at this point, and that layer of fat has now rounded out his face. This build-up of fat -- about 15 percent of his total weight--will help him maintain his body temperature and give him a store of energy. His sucking muscles, which are quite powerful, have also finished developing now, and are ready for their first real feeding -- your baby's going to be hungry soon after he arrives.