In the gestation period of 7 weeks , the small organism has a very fast building process. The fetus still has a tail, and the head is still large compared to the body, but the eyes are already closer to the bridge of the nose and the eyelids begin to form, the iris develops and the pigment appears in the eye retina.
Development of the fetus in 7 weeks of pregnancy
The embryo himself straightened slightly - no longer quite like an arc. On the legs and handles you can see the fingers, there is the design of the shoulders and forearms, the fruit knows how to bend the handles at the wrists and elbows. The upper lip and nostrils of the spout are also distinguishable, the inner and outer ear are forming.
The development of internal organs and systems is also in full swing. For example, the child's heart already has a right and left atrium and in the seventh week there is a division of the heart into a 4-chamber, so it prepares to "drive" the blood around the whole calf. In addition, there is noticeable progress in the vascular system, including the formation of large blood vessels. Very soon the heart will be in its place, but while it is in the central thoracic part and slightly protrudes forward.
There was a division of the brain into two hemispheres and now five of its departments are beginning to form. The nervous system is also developing at full speed, on the whole it has already been formed.
But for now the rapid development of the fetus. The formation of the bone system begins and the formation of the epidermis. Do not lag behind and internal organs: the future bronchi are laid, the lungs, intestines, kidneys, endocrine glands continue to develop. Completely completed the formation of the large intestine, appendix, bile ducts in the liver. In the pancreas, the development of insulin begins.
In this week of pregnancy, sexual identification will end till the end: the sex glands will be developed either into the ovaries or into the testicles, and from the resulting convexity in the perineum further external genital organs will be formed. But ultrasound can not yet determine the sex of the child.
The baby is already quite long, if we compare it with the early weeks - its KTP - the coccyx-parietal size is about 13 mm. But there is still a threat of miscarriage, so mother should take care of herself.
Uteroplacental exchange
This week, the umbilical cord formation process is completely completed and the uteroplacental exchange between mother and baby is regulated. The child is completely dependent on you, breathing and trying with the help of the substances entering into the mother's blood - you do not need to forget about it. The placenta eventually becomes denser, in order to be completely ready by the 12th week of pregnancy. The barrier from the placenta is the protection of the baby, of course, not from all the "irritants". In addition, in the seventh week, a mucous plug is formed from the mucous uterine layer, which is compacted. It is the "gateway" that closes access from the world of the external to the world of the baby. The mucous plug will only leave for some time before its appearance and will be the first sign of the forthcoming birth.
The placenta is in the process of preparing for the function of producing hormones, which is carried out until the yellow body. If it is formed and develops without obstacles and violations, then one does not need to worry, but under certain circumstances, these processes can be slowed down, which will entail a violation of the hormonal background necessary to preserve the baby. The high-risk group includes women who have been infected with infectious diseases in this period, have recently undergone abortion, have malformations of the uterus and those who have had irregular menstrual cycles and diseases of the genitals.
If you have not yet registered, this is the right time for this. You need to pass all the tests for the required examination, which includes the analysis of Rh-conflict. Be sure to consult a specialist if you have endocrine diseases.
Changes in a woman in seven weeks of pregnancy
In the seventh week of pregnancy, the areola nipples become even darker, and a dark line can appear on the abdomen. A woman can begin to have pain in the lower abdomen and on the sides as a result of the growth of the uterus.
As the volume of blood increases, it can stagnate in the legs, resulting in swelling, and sometimes it seems that there is a lack of oxygen and a pregnant woman may lose consciousness.
All the symptoms of pregnancy, which also includes early toxicosis, are highlighted more clearly. The future mother can become more irritable, sleepy, tired - need to sleep at least 8-9 hours a day, because the body is working hard and needs more rest. Do not forget about the use of vitamins and healthy nutrition. It is better to give preference to healthy food, you should avoid smoked, fried, spicy, salty foods. Gradually weight gain will begin, and soon there will be a tummy. But you do not need to give up fats and carbohydrates (naturally, useful): they are suppliers of energy and strength to the baby for his normal development and growth.
Term 7 weeks: recommendations for pregnant women
As much as possible is recommended to move, walk in the fresh air, make an appointment for gymnastics for pregnant women, well, from sport it is necessary to refuse.