The new name is FETUS. The length is 10-13 mm; the size is of a big nut. Approximate 2 g. Head is bigger in proportion to the body due to rapid growth of the brain.
CRL (crown – rump length) is 20-30 mm. Approximate 2-3 g. The external genital region begins to take shape but the sex is unable to be seen.
CRL (crown – rump length) is 25-35 mm. About 3-4 g. Hand-foot fingers, eyelids, the upper lip, ears have developed. Eyelids are closed. Iris (giving color to the eyes) has started to form.
CRL (crown – rump length) is 40-50mm. About 6-8 g. Organs continue to develop. Kidneys produce urine; the urine is excreted into the amniotic fluid.
50-60 mm in length and about 10-15 g. The most important development is formation of the vocal cords. Swallows fluids, realizes its absorption, and urinates.
The baby is approximately 7-8 cm in length and 25-30 g in weight. Vocal cords have developed. Intestines are located into the abdominal cavity.
The baby's length is 8-10 cm. and weight is about 50 g. The most important characteristic is formation of personal fingerprint. The baby is quite moveable..
About 10 cm in length, 50-70 g in weight. Because feet lengthen rapidly, the head seems even smaller anymore. Hair, nails begin to grow.
11-12 cm in length, 100 g in weight. The head and neck have begun to lengthen. The baby have begun to suck, swallow, yawn, and learned to breathe.
12-13 cm in length, 130-150 g in weight. Footprint has also formed. Bone development continues. The umbilical cord has become thick.
13-14 cm in length, 180-200 g in weight. The arms and legs lengthen. The whole body is covered by a white fatty substance called Vernix protecting the baby..
16-17 cm in length, about 300 g in weight. Hair begins to grow. Milk teeth proliferate. The external genital organs are distinguished thoroughly.
20-25 cm in length, 270-300 g in weight. Baby's movements are felt even more by development of muscles. Immune cells protect the baby from viral..
26-27 cm in length, 350-370 g in weight. The tongue has developed. Functions of swallowing the amniotic fluid are increased even more.
28-30 cm in length, 400-500 g in weight. In male babies, testosterone hormone is begun to be produced. Testicles have descended into the scrotum (ball).
28-30 cm in length, about 500 g in weight. Surfactant begins to develop in the lungs (surfactant provides alveolar sacs in lungs to be filled with air).
30 cm in length, about 500-600 g in weight. Arrived now at viability level. Babies born in this week are tried to be lived in very good intensive care environments.
32-35 cm in length, about 600-650 g in weight. Swallow and holding reflexes have developed. While swallowing the amniotic fluid, sometimes hiccup may happen.
35-36 cm in length, 700-800 g in weight. The baby reacts to sounds, touch, contact, and light from outside. Talk to your baby, make listen to music, contact by touching..
35-36 cm in length, 850-900 g in weight. Cardiac beats can be heard even by listening to abdomen. The baby's movements can easily be noted from outside.
35-38 cm in length, about 1000 g in weight. Hair and nails have grown. The baby can hear you now, recognize you, open and close the eyes, is quite moveable..
36-38 cm in length, 1100 - 1200 g in weight. Adipose tissue continues to be stored. Thermo-regulatory center of the brain has completely formed.
35-40 cm in length, about 1200 - 1500 g in weight. Development of the brain continues. The baby opens and closes the eyelids, is responsive for sound and light.
40 - 42 cm in length, 1500 g in weight. The brain continues to maturate. Nerve cells continue to be produced. Bone development is accelerated.
44 cm in length, 1500 - 1700 g in weight. The head usually is face-down. Because movement area is restricted, the baby moves lesser but stronger.
42 - 43 cm in length, 1800 - 2000 g in weight. The amniotic fluid has reached at the maximal level. The head continues to grow because of development of the brain.
45 cm in length, 2000 - 2200 g in weight. Sleep periods have improved. The baby closes its eyes while sleeping. Hair and nails grow. The amniotic fluid is regenerated..
45 - 46 cm in length, about 2400 g in weight. The adipose tissue regulating temperature in the body is increased particularly in feet and arms.
47 - 48 cm in length, 2500 - 2700 g in weight. The lungs are accepted now to complete their development. The liver, the kidneys work regularly.
48 cm in length, 2800 - 2900 g in weight. Because the baby can produce cortisone hormone, development of the lungs has been completed; after birth, the baby..
49 cm in length, about 3000 g in weight. The head and abdomen diameter are same. Hair and nails grow. Meconium begins to be collected in the bowel.
50 cm in length, 3000 - 3200 g in weight. Weight of the baby can differ from position of the baby and person to person. These are estimated measures measured by computer.
52 cm in length, about 3500 g in weight. Vernix layer has remained only on hands, feet, and back. Development of the lungs continues after birth.
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