How your baby’s growing:
Your baby’s growing steadily, gaining about a quarter of a pound since last week, when he was just over a pound. Since he’s almost a foot long (picture an ear of corn), that makes a pretty lean figure, but his body is filling out proportionally and he’ll soon put on more baby fat. Your baby’s skin is thin, translucent, and wrinkled, his brain is growing rapidly, and his taste buds are developing. His lungs are developing “branches” of the respiratory “tree” and cells that produce surfactant, a substance that helps the air sacs inflate easily.