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4 Weeks Pregnant
It's no bigger than a poppy seed.The multilayered embryo then begins to grow into specialized parts of your baby's body. The inner layer, known as the endoderm, will develop into your baby's digestive system, liver, and lungs. The middle layer, called the mesoderm, will soon be your baby's heart, sex organs, bones, kidneys, and muscles. The outer layer, or ectoderm, will eventually form your baby's nervous system, hair, skin, and eyes.
http://www.whattoexpect.com/pregnancy/4-weeks-pregnant.aspx# -
7 Weeks Pregnant
Your baby is now about the size of a blueberry (and about 10,000 times bigger than he was at conception). Most of that growth is concentrated in the head as new brain cells are generated at the rate of 100 per minute. Your baby's mouth and tongue are forming as arm and leg buds sprout, and those little kidneys are getting ready to do their job (pee production and excretion).
http://www.whattoexpect.com/pregnancy/week-by-week/week-7.aspx -
11 Weeks Pregnant
Your baby (now about two inches long) has been pretty busy this week, growing hair follicles, fingernails, and ovaries (if she's a girl).She has distinct human characteristics by now, with hands and feet in front of her body, with ears nearly in their final shape, open nasal passages on the tip of her tiny nose, a tongue and palate in the mouth, and visible nipples. And those hands and feet have individual fingers and toes.
http://www.whattoexpect.com/pregnancy/week-by-week/week-11.aspx -
15 Weeks Pregnant
She's about the size of an orange this week, her ears have migrated to the sides of her head, and her eyes are moving to the front of her face. Plus, your little smarty-pants can now wiggle her fingers and toes and make breathing movements in preparation for life outside the womb.
http://www.whattoexpect.com/pregnancy/week-by-week/week-15.aspx -
18 Weeks Pregnant
Your baby's getting ready to bust a move. At five and a half inches long and five ounces in weight, he now may be large enough for you to feel him twisting, rolling, kicking, and punching his way around the womb. Plus, he's developing yawning and hiccupping skills (you may feel those soon, too!) and his own unique set of toe and fingerprints.
http://www.whattoexpect.com/pregnancy/week-by-week/week-18.aspx -
22 Weeks Pregnant
Your baby weighs in at a whopping pound and measures nearly eight inches, about the size of a small doll.Now has eyebrows, eyelashes, and maybe even some hair on that little head) is a living one who can now perceive light and dark. She can also hear your voice, your heartbeat, your gurgling stomach, and the blood circulating through your body.She may reach for her face just to experiment with her newfound sense of touch.
http://www.whattoexpect.com/pregnancy/week-by-week/week-22.aspx -
26 Weeks Pregnant
She now weighs a full two pounds and measures nine-plus inches. And this week, her eyes, which until now were developing under fused eyelids, start to open. Of course, there's not much to see in there, but if your baby spots a bright light near your belly, you may notice an increase in fetal activity.Her brain is more developed and sophisticated.
http://www.whattoexpect.com/pregnancy/week-by-week/week-26.aspx -
30 Weeks Pregnant
Your baby is getting bigger every day, weighing in at over three pounds now. Also growing daily is his brain, which is actually starting to look like the real thing with those characteristic grooves and wrinkles. And now that your little genius can regulate his own body temperature and turn up the heat, he'll start shedding lanugo, the downy body hair that's been keeping him warm up until now.
http://www.whattoexpect.com/pregnancy/week-by-week/week-30.aspx -
35 Weeks Pregnant
Your baby is standing tall this week at about 20 inches and continues her steady weight gain (she’s about 5.5 pounds). While she won't get much longer, she will continue to pack on the pounds right up 'til delivery day. Something else that's moving at a mind-boggling pace these day: fetal brain development! There’s a lot going on inside that tiny head, which is, by the way, still soft to allow an easier exit through the birth canal.
http://www.whattoexpect.com/pregnancy/week-by-week/week-35.aspx -
40 Weeks Pregnant
This week marks the official end of your pregnancy. Your baby probably weighs anywhere from six to nine pounds and measures between 19 and 22 inches. The bones in his skull haven’t fused yet.He now has enough fat under the skin to maintain his body temperature outside the womb. You are still providing the antibodies he’ll need to fight off infections for the first six months of his life.
http://www.whattoexpect.com/pregnancy/40-weeks-pregnant.aspx
