Your baby now weighs about 2.7 lbs (1.2kg), measures about 10.4 inches (26cm) from crown to rump, and is around 16.7 inches (42cm) long. He is plumper and rounder, and his head and body are beginning to be in proportion.
Your baby now uses all of his senses. He can see, taste, recognize touch and the sound of your voice.
During the last trimester, your baby will receive antibodies from you through your placenta that will provide immunity from many diseases.
Your baby's adrenal glands are producing androgen-like substances. Androgens are normally male sex hormones, but in late pregnancy, when they reach the placenta they are turned into estrogen which in turn stimulates the production of prolactin in your body. Prolactin is the hormone needed for milk production. In this exchange, your baby is beginning to stimulate milk production in your breasts so that when he is born there will be food waiting for him.
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