How our baby’s growing:
Head to bottom, your baby’s 3 1/2 inches long — about the length of a lemon — and weighs about 1 1/2 ounces. Her body’s growing faster than her head, which now sits upon a more well-defined neck. By the end of this week, her arms will have lengthened and will be in proportion to the rest of her body. (Her legs still have some growing to do, though.) She’s starting to develop an ultra-fine, downy covering of hair all over her body (called lanugo). Her liver starts secreting bile this week, a sign that it’s already functioning properly, and her spleen starts contributing to the production of red blood cells. She’s also producing and discharging urine into the amniotic fluid, a normal process that she’ll keep up until birth. You still can’t feel your baby’s movements, but her hands and feet (which are now half an inch long) are more flexible and active. Thanks to brain impulses, her little facial muscles are getting a workout as she squints, frowns, and grimaces. She can grasp now, too, and she may be able to suck her thumb.
From Baby-Gaga.com:
Your nearly four-inch long gymnast is happily mobile inside your womb and if you’re really lucky, you’ll notice a point when your sneezing, coughing or laughing results in a little kick here or a poke there. Still, many women don’t feel anything until the 17th week or later. Although the poking and kicking isn’t very charming during sleeping hours, it’s a good sign as it means your baby is actually reacting to outside events. Yay! You’ve got yourself one active healthy baby! Their little elbows and knees are bending more freely this week and their little legs are finally growing longer than their arms and getting pumped up for prenatal Richard Simmons. Many of their major organ systems are increasing in capacity—particularly that amazing tiny heart and complex circulation system, which is now pumping about 25 quarts of blood per day, and will increase to a very impressive 200 quarts per day by the end of the pregnancy. As far as hair goes, we’ve got some new scalp patterns beginning to develop on the head, although actual head hair is not yet present.
