Embryo formation
From the beginning of fertilization to delivery, pregnant women undergo 40 weeks during which they develop and form the child’s body, knowing that pregnancy is one of the most difficult periods in which a pregnant woman undergoes, because she can not know the fetus’s health if it grows naturally, Birth, and the most difficult period are often in the first fourteen weeks of pregnancy after things improve, pregnant women must be patient to carry and know the stages of fetal formation and health matters that should be followed, and through the Encyclopedia of the subject we will He knew what was happening in the embryo formation weeks.
Each week occurs in the formation of the fetus.
first month
First week
The first day of the menstrual cycle is the first day of the pregnancy calculation, although the pregnancy is not yet complete. Each woman is different from the time of her ovulation based on the menstrual cycle. This gives a clear indication of the expected date of birth and the start of pregnancy. There are things you can do to ensure the child’s health and safety. And a balanced diet.
second week
If the menstrual cycle is complete (28 days), the egg production begins on the fourteenth day. This egg remains alive for between 12-24 hours after its release to the ovary. Any fertilization occurs during this period only. Approximately 250 million sperm (sperm) are all headed toward the egg below the fallopian tube.
the third week
In this period occurs fertilization (pregnancy) After entering and make way sperm sperm between 250 million sperm towards the egg is then the identification of sex and start life for a new born inside the mother’s womb, and the development of the fetus:
- A change to the surface of the egg prevents the entry of any new sperm, and the genital material in the sperm with the genital material in the egg and consists of 23 chromosomes.
- The egg is fertilized and divided into 46 cells.
fourth week
Fertilize the fertilized egg itself on the wall of the uterus and grow, and the uterus begins to expand and become more flexible, and the development of the fetus is:
- The egg turns into a ball coated with hundreds of hollow cells filled with fluid.
- These hollow cells grow and form a three-layer disc.
- The fetus depends on 100% of the mother’s diet; you should stay away from drinking coffee and having a healthy and healthy diet.
second month
First week
May appear some fatigue and may feel pregnant women different feelings, and soften the wall of the uterus, and consists of the mucous valve that surrounds and protects the uterus, and development:
- The length of the fetus increases (half a cm) and here you should stop smoking and follow a varied diet in meals.
second week
Pregnant women feel nausea and dizziness due to hormonal changes, and development of the fetus:
- The heart of the fetus starts to pulse and forms (secret milking, fingers, nose, ears, eyes, and head).
- The fetus length is 2 cm and starts moving without the mother feeling.
the third week
Changes in mood and neurological excess with different sense of smell and taste, and the development of the fetus:
- Pelvic flora forms, and infiltration occurs into the bloodstream to form the placenta so the pregnant woman feels some nausea.
- The fetal heart is divided into two left and right sections.
fourth week
The pulse rate of pregnant women increases and here you need to rest and relax, and the development of the fetus:
- Key members, internal organs and parties are completed.
- The fetus is 20 mm long and receives its food from the placenta via the umbilical cord.
the third mounth
First week
Pregnant women may feel some twitching and pain due to the expansion of the uterus, and the development of the fetus:
- Its weight is 4 grams and its length is between (22-30) mm.
- His arms and legs grow remarkably thin.
- The fetus can be shown as it moves through the device but the mother does not feel it.
second week
At this stage pregnant women need to enter the bathroom heavily, because the uterus presses the bladder and continue symptoms of nausea and fatigue, as the development of the fetus:
- The embryo is now the size of a strawberry and begins to breathe.
the third week
Pregnant women feel warm presence in the area of the foot and hands because of the amount of blood circulating around the body, and thirst is severe and this indicates the need for the body to water, and the development of the fetus:
- The fetus length is 5.8 cm and starts with swallowing, sucking and yawning movements.
- His heart starts pumping blood to all parts of his body.
- It grows faster and doubles in length and keeps the head size larger for the body.
fourth week
Pregnant women feel weight in the legs, waist and breasts, and the development of the fetus:
- He begins to extend his fingers and the main organs of the embryo are fully developed.
- The fetal heart beats can be clearly heard by the Doppler.
Fourth month
First week
Constipation occurs as a result of the high production of progesterone in pregnant women and lead to hardening of the stool and growth of the uterus, and the development of the fetus:
- Start to hear the sounds and the image of the face of the fetus.
- The length of the fetus is between 65-78 mm. The embryo moves rapidly and the mother can not feel its movement.
second week
Pregnant women regain their energy and become clothes tight because of the large size of the child, and the development of the fetus:
- You can tell if male or female through ultrasound.
- Bone and muscle growth continues and calcium intake should be increased during the week so that the fetus gets enough of it.
the third week
Changes occur in the skin and darker color, and development of the fetus:
- It is the size of the palm and covers the body with a light hair layer.
fourth week
Pregnant women may undergo some tests to check the fetus’s health and there is no fear if the fetus does not move. The development of the fetus:
- Responds to any touch and forms eyelashes, eyebrows and eyes.
- It is 11 cm long and the neck grows to become taller.
the fifth month
First week
The skin becomes more fresh due to increased blood circulation, and the development of the fetus:
- The fat is formed under the fetal skin.
- Increasing weight and length.
second week
The sexual desires of pregnant women begin to restore their activity as a result of the increase of estrogen in the body, and the development of the fetus:
- Soft bristles appear on his head.
- The length of the fetus is between 12-14 cm and begins with the formation of eyelashes and the speed of growth.
the third week
The size of the breasts increases and blood flow increases. The development of the fetus:
- The nervous system grows and the placenta forms a protective barrier against disease and infection.
fourth week
The breasts begin to leak to the pregnancy bores (which is before the milk) and the vaginal discharge increases. The development of the fetus:
- Fetal waste goes out to the female body organs, so you should drink plenty of water.
- It begins by forming upper and lower layers of the skin.
The sixth month
First week
The appetite of pregnant women increases, and the development of the fetus:
- Organic organs begin to mature and mature in the size of a large banana.
second week
The pain and tingling in the breasts and the largest size continue in pregnant women, and the development of the fetus:
- His skin grows and his toes grow.
- The digestive system begins.
the third week
Pregnant women may experience problems of heartburn and poor digestion, and the development of the fetus:
- His hair remains wrinkled because the grease is not subcutaneous.
- Muscle growth continues and begins to stretch.
fourth week
Feel some difficulty breathing, because the body tries to get rid of the waste gases expelled by your child, and the development of the fetus:
- The tooth buds (roots) are formed under the gums.
- His ears grew louder and the taste of taste began to grow.
the seventh month
First week
Pregnant women may suffer from shortness of breath, because the uterus stops the expansion of the thoracic cavity, and the development of the fetus:
- He can hold his feet and grab his hand.
- The fetus now has periods of rest and activity and the brain starts to form similar to that of the newborn.
second week
Pregnant women need periods of rest and relaxation to reflect on the fetus and slow down the heartbeat, and the development of the fetus:
- Covered with a waxy layer to protect his body.
- The muscles begin to complete and grow larger.
the third week
The uterus continues to push down the rib cage and this may cause a lot of pain in the pregnant woman, as the development of the fetus:
- The child weighs 1 kg, and now here is able to hear the sounds and respond to them and starts opening his eyes.
fourth week
The child starts kicking and shaking a lot on the belly of the pregnant woman and therefore there are difficulties in sleep has approached the date of childbirth, as the development of the fetus:
- The fetal brain is still soft and the amount of brain tissue increases.
- The fetus can control temperature, and iron needs to form red blood cells.
eighth month
First week
Pregnant women need to do a lot of tests to ensure the safety of the fetus, and the development of the fetus:
- Continue to grow, and therefore must be available large amounts of protein that the mother.
- The head became proportionate to the body.
second week
The weight of a pregnant woman increases because of the large size of a child weighing 3.4 kg. There is no concern, and the development of the fetus:
- The ability to stare and concentrate, the fetus needs vitamin A to look and must stay away from the liver.
- The ability to move in a consistent way and become the fetus is physically stronger.
the third week
The joints of the pelvis begin to expand to prepare for delivery, and the development of the fetus:
- The fetus moves 10 times every four hours.
- He develops his immune system, which he takes from the mother’s immune system.
fourth week
When the head of the fetus becomes lower in preparation for childbirth, the breathing of the pregnant woman is more difficult and sleep becomes a problem. The development of the fetus:
- He can hear the sounds half the mother hears and is now integrated and ready to give birth, but may need more time to gain weight.
The ninth month
Now the child has completed its growth, and may be born at any time during the month and when labor is brought down at any moment, ie water drop and irregular contractions, here is birth.