Week Twelve: Fingernails and toenails appear
|You are 12 weeks pregnant. (fetal age 10 weeks)|
Your baby now has a chin and a nose and a facial profile. Vocal chords are complete, and the baby can and does sometimes cry silently. The brain is fully formed, and the baby can also feel pain. The fetus may even suck his thumb. The eyelids now cover the eyes, and will remain shut until the seventh month to protect the delicate optical nerve fibers. The hair is on the head and the fingers and toes have developed soft nails. The kidneys are developed and begin to secrete urine.
Your baby weighs between 0.5 and 0.7 ounce (14 to 20g), and crown-to-rump length is almost 2.5 inches (63mm). Your baby's size has almost doubled in the past 3 weeks.