FETAL DEVELOPMENT

This week is actually still the menstrual period, fertilization was not even happen. For approximate date of birth of your baby based on the first day of your last period

The process of formation of sperm and egg that provides

information to the body that has no potential babies in the womb. Currently, the fetus already has all the genetic stock, a unique combination of 46 types of human chromosomes. During this time, all it takes is nutrition (through mother) and oxygen.

Sel2 eggs inside a womb, is shaped like a circle of light which surrounds this matahariSel sel2 sperm will meet and begin the process of fertilization

5 million sperm cells at a time swimming toward their ultimate goal is to hide the eggs in the egg cell lines. Although the army is very much sperm cells, but in the end only 1 cell that can penetrate the ovaries.



At this time the head of the sperm cells had almost entered. We can see the middle and back of the sperm cells that never stopped trying to be diligent through the ovary wall


Week 2:

Fertilization occurs at the end of the second week. The fertilized egg cell divides the two 30 hours after fertilization. While continuing to divide, move the egg in the hole tubes toward the uterus. After splitting into 32, the egg is called morula.
The cells began to grow and is divided roughly twice a day so that on the 12th day the number has increased and helped blastocyst adrift on the endometrium


Week 3:

Until the age of 3 weeks of pregnancy, you may not have been aware of if being pregnant. Egg cell that has been split into hundreds will stick to the lining of the uterus called the blastocyst. The size is very small, from 0.1 to 0.2 mm in diameter.


Week-4:

Now, the baby-shaped embryo. The embryo produces hormones of pregnancy (chorionic gonadotropin - HCG), so if you do a pregnancy test, the results are positive.

Begin to shape the structure of the human fetus. When this has been the formation of the brain and spine as well as heart and aorta (a large vein that carries blood to the heart).


Week 5:

Formed 3 layers ie ectoderm, mesoderm and endoderm. Ectoderm is the uppermost layer that will form the nervous system in fetuses that are so formed brain, spine, skin and hair. Mesoderm layer is in the middle layer that will form the heart organ, the kidneys, bone and reproductive organs. Endoderm lining the innermost layer that will form the intestine, liver, pancreas and urinary coffers.


Week 6:

The average size of embryos 2-4 mm measured from the top of the head to the buttocks. Tuba nerves along the back of the baby has been closed. Although you can not hear the baby's heart starts beating in coming weeks. Digestive and respiratory systems begin to be formed, small buds which will develop into arms legs began to appear





Week 7:
End of seventh week, about 5-13 mm in length and weighs 0.8 grams, about the size of green beans. Arm shoots begin to divide into the shoulder and a tiny hand. The heart has divided into right ventricle and left ventricle, as well as air channels available in your lungs



Week 8

The length of approximately 14-20 mm. Many of the changes that occur in your baby. If you can see, the tip of the nose and eyelids begin to grow, so does the ear. Brochi, the channel that connects the lungs to the throat, began branching. Arm getting bigger and he had elbow. All this happened in just 6 weeks after conception.



baby had begun to form among the formation of the nostrils, lips, mouth and tongue. Her eyes also been visible under the thin skin membrane. Members of the hands and feet are also formed, although not perfect
Week 9:

Outer ear begins to form, the feet and hands continue to grow following the toes and hands began to appear. He began to move even if you do not feel it. With Doppler, you can hear his heartbeat. This week, approximately 22-30 mm in length and weighs about 4 grams.


Week 10:
All vital organs are already formed start working. Brain growth is increasing rapidly, almost 250,000 new neurons are produced every minute. He is starting to look like a small man with a length of 32-43 mm and weighs 7 grams.


Week-11:
Body length reaches about 6.5 cm. Good hair, fingernails and feet began to grow. Occasionally at this age the fetus has evaporated.

Movement by movement of the feet and hands, including writhing movement, straighten the body and lowered his head, could be felt maternal. In fact, the fetus has now been able to change its position with the spinning, elongated, curled, or even flips the often painful sensation while providing their own happiness



Week 12:

Form a complete baby's face, chin and nose is small. The radius of the tiny hands and feet fully separate. Baby's intestines had been in the abdominal cavity. Due to the increasing volume of maternal blood, fetal heart rate could be increased. Length about 63 mm and weighs 14 grams.

Begin the process of perfecting all the organs. Babies grow a few millimeters each day. Toes and hands begin to form, including the ears and eyelids.




Week-13:
At the end of the first trimester, placenta evolved to provide oxygen, nutrients and waste disposal baby. Baby's eyelids move up to protect the developing eye. The fetus reaches 76 mm length and weighs 19 grams.
Baby's head grow faster than others. Her body is also getting bigger to pursue the enlargement of the head.


Week 14:
Three months after conception, the length of 80-110 mm and weighs 25 grams. Her neck was getting longer and stronger. Lanugo, fine hair that grows throughout the body and protects the skin began to grow in coming weeks. The prostate gland develops a baby boy and ovaries from the abdomen down towards the pelvis.

Began to strengthen the baby's heartbeat but the baby's skin is not thick because there is no layer of fat

Week 15:

Bone and bone marrow in the skeletal system continues to grow. If your baby is female, the ovaries begin to produce millions of eggs in coming weeks. Baby's skin is very thin so the blood vessels visible. Late this week, weighing 49 grams and 113 mm long

Week16:
Baby is able to hold his hand and thumb sucking.
The baby has fully formed and needed nutrients through the placenta. Babies have to have strong bones and begin to hear voices. In this formation process of the circulatory system is the first form and function.
The fetus begins to move! But do not worry if you do not feel it. The more calcium that is stored in the bones of the baby along with the development framework. Your baby is measuring 116 mm and weighs 80 grams


Week 17:

With a length of 12 cm and weighing 100 grams, the baby is still very small. Brown fat tissue begins to develop, to menjada baby's body temperature after birth. Did You Know? At birth, the weight of fat to reach three-quarters of the total weight.
Hair, forehead, eyelashes begin to grow and baby skin lines of the fingertip begins to form. Fingerprints are already taking shape

Week 18:
Start humming because the fetus is able to hear in coming weeks. He also may be surprised when they hear a loud noise. Baby's eyes even to survive. He will know the light if you put a flashlight that burns in the stomach. Its length was 14 cm and weighs 140 grams.
Baby can see light coming through the wall of the mother's womb. Estrogen and Progesterone Hormone increasing.


Week 19:
The baby's body covered with vernix caseosa, a kind of waxy coating that protects the skin from the wound. Baby's brain has reached millions of motor nerves so she could make a voluntary movement such as thumb sucking. It weighs 226 grams with a length of nearly 16 cm.



Week 20:
Half of travel has passed. Now, weighs 260 grams and a length of 14-16 cm. Under the layer of vernix, the baby's skin began to make a layer of the dermis, epidermis and subcutaneous. nails grow in coming weeks.
The process of perfecting the lungs and respiratory system. Skin pigment began to appear


Week 21:
Baby's intestines have developed enough so that he was able to absorb or swallow of liquid sugar and then proceed through the digestive system manuju colon. Baby move more slowly because of the weight was 340 grams and length 20 cm



Week-22:

Sense to use a baby to learn to grow every day. Every week, her face increasingly similar as when born. Comparison of head and body more proportional


Week 23:
Despite growing piles of fat in the body of a baby, his skin was sagging so that it looks wrinkled. This is because the production of skin cells more than fat. He has habits "exercise", move the muscles fingers and toes, arms and legs regularly. It weighs almost 450 grams
Hands and feet of babies have been formed, the finger is fully formed.

Week 24:

The lungs from taking in oxygen while the baby is still receiving oxygen from the placenta. For the preparation of life outside the womb, the baby's lungs begin to produce surfactant that keeps the air bag inflates fixed

Baby's skin started to thicken


Week 25:

Baby hiccups, if you feel it? It's a sign he is breathing exercises. He sipped and remove the amniotic fluid. If the amniotic fluid is ingested too much, she'll hiccup.

Bone baby baby becomes increasingly hardened and stronger babies. Blood vessels in the lungs of the baby is growing. Lines around the mouth of the baby had begun to form and function of swallowing is getting better. Baby's sense of smell is getting better because in this week the baby's nose (nostrils) have started functioning. Weight babies has reached 650-670 grams with 34-37 cm height.



Week 26:
Babies can already blinked his eyes in addition to the retina has started to take shape. Brain activity associated with hearing and pengelihatannya already functioning, mothers can start play the songs light and try to give more light around the stomach, maybe the mother will feel a little nod. Baby's weight has reached the 750-780gram, while 35-38 cm high.


Week 27:

The first week the third trimester, lungs, liver and immune system remains to be matured. But if he was born, has a 85% chance to survive.

Sense of taste begins to form. The baby also has good thumb-sucking and swallowing the amniotic fluid that surrounds it. General weight infant child's age 870-890 grams with 36-38 cm height.

Week 28:

This week weighs 1100 grams and length 25 cm. Baby's brain is growing and expanding. Fat layer was more developed and continues to grow his hair

Fat in the body begin to grow. Although movement is limited because the baby has started growing severity, but his eyes have started to blink when you see light through the mother's abdominal wall. Her head was pointing downwards. His lungs has not been perfect, but if the moment he was born into the world, little likely to have been able to survive.


Week 29:

Baby's adrenal glands begin to produce hormones such as androgens and estrogens. This hormone will menyetimulasi hormone prolactin in the mother's body so as to make colostrum (first milk out while nursing).

The sensitivity of the more obvious baby, baby can identify changes in sound, light, taste and smell. In addition, a baby's brain can control the breath and regulate body temperature of infants. Posture of the baby is more perfect as a human being, weight 1100-1200 grams, with 37-39 cm height.

Week 30:

Fat and body weight babies got bigger and weight babies are now about 1400 grams and length 27 cm. Because he gets older, his movement increasingly felt

Beautiful eyes baby has started moving from side to side and he's already learned to open and close his eyes. Currently, the best time for mothers to menyenteri stomach and moved his flashlight movement is the baby's eyes can follow the direction in which flashlights are bersinar.cairan membranes (amniotic fluid) in the womb of the mother on the wane. Now the little one had already started to produce tears. The baby weighed 1510-1550 grams, with 39-40 cm high.

Week 31:

The placenta was still giving your baby needed nutrients. Blood flow in the placenta allows the baby to produce urine. He was urinating nearly as much as 500 ml per day in the amniotic fluid

The physical development of babies have started to slow in this phase, only weight bayilah that will accrue. In addition, increases in the layer of fat under the skin tissue. The bones in the baby's body has begun to harden, develop and begin to condense with vital substances such as calcium, iron, phosphorus. Contrary to

physical development, in this phase of development otaknyalah growing very rapidly by producing billions of cells. When music is played, the baby will move. The baby weighed 1550-1560 g with 41-43 cm high.


Week 32:

Fingers and toes have fully grown, as well as eyelashes, eyebrows and hair on the baby's head is increasingly clear. Lanugo that covers the baby's body began to fall out but some still exist in the shoulder and back at birth. Weighing 1800 grams and length 29 cm, the ability to survive outside the womb have been better if at birth this week.

The baby's skin is red, his eyelids open and the system has also been formed with perfect hearing. Nails of fingers and toes tiny baby is a complete and perfect. Her hair even more and longer. Infants have started to dream.

Week 33:

Babies have a shape that resembles the face of his father and mother. Baby's brain develops more rapidly. At this time the baby's brain also has begun to be coordinated among others, the baby is sucking his thumb and was able to swallow. Although the bones of a baby is getting hard but the muscles of the baby has not really united. Babies can take a deep breath, although his breathing was still in the water. When her baby boy the testes baby had begun to come down from the abdomen into the scrotum. The baby weighed 1800-1900 grams, with a height of about 43-45 cm.

Week 34:

baby in the womb door. Babies are able to open and close their eyes when sleepy and sleep, babies also have started to blink her eyes. Mother's body is being sent to the antibody via mother's blood in the baby's blood that serves as his immune system and this process will still continue to take place even greater detail at the time of mothers start breast-feeding. Body weight infants 2000-2010 grams, with a height of about 45-46 cm.


Week 35:

Baby's hearing is functioning perfectly. Fat from the baby's body has begun to condense on the legs and hands, this fat layer serves to provide warmth in her body. Baby is getting bigger and have started to meet the mother's womb. When the baby boy then mothers in this month's testicles have been perfect. The baby weighed 2300-2350 grams, with a height of about 45-47 cm.


Week 36:

Baby's skin is more delicate and has become the baby's skin. Fat layer has begun to fill in the arm and calf from a baby. The kidneys of the baby is working well and his liver had been producing grime. Currently, the baby's lungs are working well even ready to meet with mama and papa. The baby weighed 2400-2450 grams, with 47-48 cm height


Week 37:

Baby's head down into the pelvic space. Baby more rounded shape and his skin turn pink. Her hair grew and grew 5cm thick. Nails are perfectly formed. Babies can already see the light outside the womb. The baby is currently studying to become familiar daily activities, other than that the baby also is learning to do the breathing while breathing is still done in the water. She weighed in this week's 2700-2800 grams, with 48-49 cm height


Weeks until week-38-40: The process of formation has ended and the baby is ready to be born.