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week 7
The baby's eyes and inner ears are starting to develop. It is about now that your baby's major organs (heart, lungs liver, spleen, and kidneys) are beginning to develop. Your baby's digestive system is becoming more refined as the stomach and intestines develop. Well, since the Neural tube (later known as spinal cord) begins to fuse, folic acid is important in preventing neural tube defects. The embryo size is about a 1/8 inch (4mm) long.http://www.baby2see.com/development/week7.html -
week 10
The unborn baby is now called a fetus. Though the fetus is constantly moving, you will not be able to actually feel fetal movement for several more weeks. All of the organs, muscles, and nerves are in place and beginning to function. As the hands and feet develop fingers and toes, they have lost their paddle like look. The touch pads on the fingers form and already have fingerprints. http://www.baby2see.com/development/week10.html -
week 12
From this week you may well be able to hear the baby's heart beat through a doppler monitor on your tummy. You will notice that the rate is up to 160 a minute, double that of a normal adult. 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.
http://www.baby2see.com/development/week12.html -
week 16
Your baby has learned to breathe. This is apparent from the regular movements of his chest, inhaling and exhaling small amounts of amniotic fluid. These actions help the lungs to develop and grow. More developed facial muscles may lead to various expressions, such as squinting and frowning. Your baby nows weighs more than their afterbirth. The baby can grasp with his hands, kick, or even somersault.
http://www.baby2see.com/development/week16.html -
week 20
Your baby may react to loud sounds. Baby can actually hear noises outside of the womb. Familiar voices, music, and sounds that baby becomes accustomed to during their development stages often are calming after birth. This is an important time for sensory development since nerve cells serving each of the senses; taste, smell, hearing, sight, and touch are now developing into their specialized area of the brain.
http://www.baby2see.com/development/week20.html -
week 24
The lungs are developing branches of the respiratory tree and cells that produce surfactant. This is a substance that helps the air sacs inflate easily and also keeps the small air sacs in our lungs from collapsing. The baby practices breathing by inhaling amniotic fluid into developing lungs. The unborn baby is covered with a fine, downy hair and the skin is protected by a waxy substance.
http://www.baby2see.com/development/week24.html -
week 26
The fetus makes breathing movements, but there is no air in the lungs yet. Hands are active and muscle coordination is such that they can get a thumb into the mouth. Thumb sucking calms the baby and strengthens the cheek and jaw muscles.
http://www.baby2see.com/development/week26.html -
week 27
Welcome to the third trimester. Congratulations! You have made it 2/3 of the way through. It may be hard to believe, but your baby now appears much like he or she will look like at birth. Baby now has eyebrows and eyelashes and hair is growing everyday. The muscle tone is improving and his or her body is getting plumper
http://www.baby2see.com/development/week27.html -
week 33
The baby is using it's lungs to practice breathing by inhaling amniotic fluid. Your baby is drinking about a pint of amniotic fluid a day now and urinating the same amount. The early baby fuzz, lanugo, is disappearing now and being replaced by actual hair. The nails of your baby are now long enough to reach to the tip of the fingers or beyond and may need trimming as soon as they are born.
http://www.baby2see.com/development/week30.html -
week 38
Development is complete, baby's main job is to gain weight. The body continues laying on the fat stores at a rate of about an ounce (28 grams) a day, that will help regulate his or her body temperature after birth. The amniotic fluid, this is approximately equal to 4 or 5 cups. It doesn't sound like much, but just wait until your water breaks, it will feel like much more.
http://www.baby2see.com/development/week38.html
