The second stage of annual tribal fertility

In the second trimester, various organs, nerves, and muscles of the fetus begin to function. Monitor your fetal growth and development by referring to the following second trimester fetal development schedule!

Week 13: urine is formed

During this period, the fetus begins producing urine, releasing it into the amniotic sac and producing amniotic fluid. Bones begin to harden, especially the head and long bones. Baby's skin is always thin and transparent.
 
Week 14: Baby's vital organs are cleaned

By the 14th week, the baby's neck becomes lighter and red blood cells form in the spleen. Sex will also become clearer.
 
Week 15: The baby's scalp model begins to grow
Bone development continues and will appear on ultrasonic images within a few weeks. Baby's scalp and hair patterns also begin to form.

Week 16: Baby's eyes can move

Here, the baby's head starts to erect. His eyes can move more slowly. His ears almost reached perfect shape.

Week 17: Baby's nails grow
In addition to the appearance of the nails, the development of the second trimester fetus (week 17) shows that the baby is increasingly active in the amniotic sac, whirling and turning. His heart is able to pump about 100 liters of blood every day.

Week 18: Babies begin to listen

In the early hours of the 18th week, baby's ears start to bulge at the side of the head and can be heard. His eyes began to look forward and his digestive system began to function.

Week 19: Development of protective coatings

During this period, an oily layer called vernix caseosa begins to cover the baby. Caseosa vernix helps protect skin from blisters, cracks and hardening due to exposure to amniotic fluid. Meanwhile, the uterus and vaginal canal begin to form in the female fetus.

Week 20: mid pregnancy

In the middle of the birth, the baby will sleep and wake up regularly. At present, babies are around 160 mm (6 1/3 inches) and weigh more than 320 grams (11 ounces).

Week 21: Babies can suck their thumb

During this period, the baby's body begins to be covered with fine hair and fur called lanugo. Lanugo helps repair vernix caseosa to the skin. Simple reflexes, like thumb sucking, also begin to manifest themselves.

Week 22: Baby's hair is clearly visible
At this stage of the second trimester fetus, baby's eyebrows and hair become more visible. In male fetuses, the testicles begin to descend.
 
Week 23: Fingerprints and fingerprints are formed

During this time, babies begin to move their eyes quickly. Patterns begin to form on the palms and soles, which later become fingerprints and footprints.

Week 24: Baby's skin is wrinkled

At week 24, the baby's skin starts to contract from pink to red because blood flows through the capillaries.
 
Week 25: Babies can react to sounds
During this time, babies can start reacting to familiar sounds, such as the sound of their mother.

Week 26: Lungs begin to grow

Here, the baby's lungs begin to produce surfactants, substances that allow the air sacs in the lungs to expand and prevent them from sticking when the lungs are deflating. At present, the baby is about 9 inches (230 mm) and weighs around 820 grams.

Week 27: End of the second quarter
After 27 weeks, the baby's nervous system becomes more mature and perfect. Babies also get bigger and their skin looks smoother.

This is the development of the second trimester fetus as a function of the week. How was your second quarter developed?

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