Development of pregnancy on weeks with description and photo

What is the week of pregnancy everyone knows, but you may be wondering how pregnancy looks like on weeks in pictures ?!

Reproductive Anatomy of Women

Your child grows amazing during pregnancy. From the very first weeks of pregnancy until your child is born, he develops and prepares for birth.

Reproductive Anatomy of Men

Human health is important for the health of the fetus. While men are able to conceive a child until they are alive, now it turns out that they need to carefully follow health.

Visual representation of a week of pregnancy in calendar with pictures

Visual pregnancy calendar for weeks with pictures will give you a visual idea that every week every week day after day throughout the stages of pregnancy.

Pregnancy calendar is very important. Use this weekly maternity allowance to learn about their changes to weeks and make timely weekly ultrasound research if required.

You have a great way to follow the growth of the fetus during pregnancy with a weekly calendar filled with images of the child's development.

Your pregnancy on weeks visually in pictures

Pregnancy and the Toddler's waiting itself is the most exciting time in the life of a woman. The future mother is looking forward to meetings with her child, thinks about what color his eyes will be, hair, for whom the crumb will be like, it is planning to be in detail his future. On all this, a woman has alight, namely, so much lasted the process of entering the fetus. So let's not waste time. We offer you to consider in detail what changes occur on a week of development of pregnancy. This will help the future mom better understand how her baby develops and what changes occur in her body.

first week

In this period, the woman is still not even guessed that her life to be born inside. This week is the formation of blastocysts. We are talking about clusters of cells, which are a special hollow bubble filled with liquid.

Second week

Somewhere on the tenth day of pregnancy, this very blastocyst will enaches on the inside of the uterus with a more reliable way and will begin to turn with vile. Her cells begin to develop faster and are already a germin. At this stage, girls stop menstruation and a certain number of signs of pregnancy appear. We are talking about toxicosis, some discomfort at the bottom of the abdomen, changes in mood and taste addies, etc.

Third Week

This is a very responsible week for the development of the kid. After all, at the moment the formation of the placenta. What is it needed for? Everything is simple - with the help of her, the crumb will receive all the microelements necessary for its development, vitamins, minerals, etc.

fourth week

Your baby is still very small. The fetal size fourth week is about 0.36-1 mm. Usually, the fourth week is the very beginning of embryonic development. This period will last about 10 weeks. It is important in that at that moment the formation of organs and future kids systems occurs, which, despite their very miniature sizes, will already function.

Fifth week

This week the size of the baby is already about 1.25 mm. At this time, the fetus occurs larynx, heart and trachea. In addition, at the end of the fifth of the week, the development of the circulatory system begins in Chud.

Sixth week

We offer you not only to learn interesting facts, but also yourself, a week for a week, to watch the baby develops. The birth of life and pregnancy on weeks with unique photographs that were made by Swedish photographer Lennart Nilkson back in 1965. The photographer himself was born in 1922 and became the first one with the help of special equipment and cameras, could penetrate inside the female body and remove the whole process of the birth of a new life.

The first photos of the embryo appeared in the press back in 1953, and this event inspired the photographer to create new works.

In order to show the development of a person from the very beginning, he placed the microcamera and a microswitter at the end of the cistoscope tube, which the bladder inspects, and removed its unique photos directly from there, from where people do the first step into the world. We will tell about the most basic moments of pregnancy, the formation of a new life.

"IMPORTANT" * The development of pregnancy in this article follows the weeks of the development of the embryo. That is, if you want to get an obstetric week, add 2 weeks to the embryonic duration

Two spermatozoa contact with an egg shell. The enzymes contained in the sperm head dissolve the egg sheath, but only the genetic material of one spermatozooid is involved in fertilization.

One of 200 million paternal sperm, breaking through the egg shell, literally poured into it. . .

Week

In this period, fertilization occurred. The fruit is completely tiny and fix it on the ultrasound is almost impossible. Embryo implantation occurs. Begins the restructuring of the body and the production of hormone, which is responsible for protecting the fetus during pregnancy. Also, the formation of placenta and umbilical cord.

In the first week there are no signs of pregnancy. However, some women already feel drowsiness, weakness, the severity at the bottom of the abdomen. The same symptoms in premenstrual syndrome. A distinctive feature can be implantation bleeding - small allocations of pink or brown.

Week

differences from the first week minor. In the second week, the fruit increases by 1/10 from its overall size. The placenta continues to be formed and starts to function.

There is a pulling pain at the bottom of the abdomen, pink highlights may appear. It is important to consider that abundant brown allocations may indicate miscarriage. Often they are confused with menstruation.

Week

Some women are raised by urination, toxicosis appears. It can dramatically increase or decrease the number of selection. It is important to pay attention to their color and smell. Any deviations from the norm can talk about the presence of infection.

Week

Women appetites noticeably rises. The belly is slightly rounded, the waist changes the outline. The vomit reflex increases, the intolerance to the smells occurs. There is a sharp change of mood, irritability, emotional instability. Milk glands are gaining volume, the sensitivity of nipples increases.

With the onset of the first day of pregnancy in the body of the future mother, hormonal and structural restructuring occur, which are aimed at maintaining the intrauterine. However, the most incredible changes occur in the body of a child who passes several stages of reincarnation - from a fetal egg to the embryo, from the embryo to the fetus. As a result, a small person with fully formed organs and systems is born. Subsequent development and consideration occurs in childhood. Information about the changes in the fetus at each week of pregnancy is interesting to every woman in an interesting position. Possessing these knowledge, the future mother will be better understood the reason for changes in its body and react to each stage of the development of the kid.

periods of intrauterine development

Pregnancy is a physiological process in the body of a woman who begins from the moment of fertilization of the egg sperm and the child ends. The fetal tool period lasts 9 calendar (36 weeks) or 10 obstetric months (40 weeks or 280 days). It should be known that the obstetric month lasts 28 days.

At each week of pregnancy, changes in the organism of the embryo are naturally occurring, in which the laws of evolution are laid. Individual features of the fetus depend on the genetic code, which the child receives from a chromosomal set of the sexual cell of the father (spermatozoa) and the mother (egg).

fetal development for pregnancy weeks

Pregnancy is divided into 3 periods (trimester), each of which is characterized by features and changes in the body of a woman. Next, consider the factual, and not the obstetric weeks of the fetal tool period, which begin with the moment of conception. The obstetric weeks are considered from the first day of the last menstruation. Thus, in 1-3 obstetric weeks, a woman is actually not pregnant.

In 1 trimester there is an implantation of an egg in the uterine cavity, the laying of organs and the embryo systems, the beginning of the development of functional systems, the rapid growth of the embryo.

In the first week of pregnancy, the spermatozoic egg fertilization in the ampular separation of the uterine tube passes. After that, a fruit egg is formed, the cells of which immediately begin to share. A multicellular organism is developing, which in obstetric practice is called Morula (from the Latin word "Morus" - blackberry). For 3-10 days, the fruit egg falls into the uterine cavity, which is attached to the mucous inner layer - endometry. This process is called implantation. The cells of the cells of the outer layer of the morule penetrate into the endometrium, are connected to the blood vessels of the uterus mucosa, in the future form a placenta. The naval of the outer layer of the other side of the fetal eggs participate in the formation of umbilical umbilicals and embryo shells. The cells of the inner layer become a building material for organs and systems of the child.

Starting from 2 weeks, Morul becomes an embryo. In the organism of the embryo, the laying of vital organs and systems begins. The primitives of umbilical umbilical cords, accumulative shells, placenta continue to develop. First of all, the nervous tube is laid - the predecessor of the nervous system of the fetus.

Over 3 weeks, the remaining functional systems of the body are laid - digestive, respiratory, blood, excretory. The nervous system continues to develop. At the place of the head of the future child, a wide plate is formed, which is a brain reservoir. At the end of 3 weeks, the heart of the fetus begins, which is not yet determined by medical diagnostic equipment.

Each future mother wants to know how it grows and develops its baby before the appearance of the world. In the body of a pregnant woman constantly occur. They allow you to track the development of the fetus. Terms are determined by weeks of pregnancy, which are combined into special cycles, called trimesters.

first trimester (with obstetric month)

The first trimester of pregnancy is the beginning of the birth of a new life. At this time, the formation of the fetus, its internal organs and in general the entire system.

fertilization of the egg cell spermatozoom occurs. Zygote - so called a fertilized cell - contains a set of 46 chromosomes, its size is comparable to a grain of salt. This cell contains information about the body of the future child, up to the definition of appearance and gender, which is inherited from parents.

zygota begins to share, for seven days turns into a Morulu - a germ consisting of 32 cells. Morula is gradually moving in the uterine tube and on the seventh day falls into the uterus. This moment is called implantation.

It provokes minor allocations, which are accompanied by the same sensations for a woman, as in the second phase of the menstrual cycle. These are small pains in the lower abdomen, lethargy, the swelling of the mammary glands and so on.

Plate appears, which will then turn into a brain. The basis of all future systems of the body is formed - blood, nervous, digestive, respiratory. On the last day of the week, the germ begins to beat the heart.

barely learning about his interesting position, the woman immediately becomes interesting how little life develops inside it. I want to know all the details how quickly grows when the tummy and many other curious facts appear.

What happens to the embryo all months

Even when the external signs of pregnancy are completely absent, the baby is already actively developing. The desire to know everything to the smallest things is quite logical. Unusually, but the fact, because only during intrauterine development, a person grows with the maximum speed. It is about 50 cm for 9 months.

All 9 months divided by 3 trimesters and 40 weeks. It is very difficult to identify a reliable date of conception, this is due to the individual characteristics of the female organism. Therefore, doctors take countdown from the first day of the last menstruation. This value is called obstetric period of pregnancy.

To be able to observe and control the whole process, in medical practice pregnancy is made to divide on trimesters:

Sometimes it happens that the woman carries a child over 40 weeks. The reason for this may be errors in the calculations or the provision of incorrect information about the last menstruation.

To explore development and control the process of forming a baby, it will be best to consider its growth on weeks. Consider what changes occur with a woman and her baby. Detailed photos of ultrasound will help to clearly appreciate the fetal development process.

Active preparation for conception

From now on, a woman who plans a child should be more attentive. It's time to start checking out to ovulation. The output of the ripe eggs falls on the 14th day of the cycle. It is possible to determine that the body is ready for fertilization using a special test that shows the proximity of ovulation.

ovulation depends on many factors, for example, the duration of the cycle, stress, climate reorganization. That is why ovulation can occur slightly earlier or later.

Futive mothers are always curious how the fetus is being developed during when he is waiting with such impatience. Let's talk and look at the photo and pictures, how the fruit is growing and developing on weeks.

What makes the puzzle of the whole 9 months in the tummy at mom? What does it feel, sees and hears?

Pregnancy: fetal development for weeks

Let's start the story about the development of the fetus for weeks from the very beginning - from the moment of fertilization. The feast of age up to 8 weeks is called the embryo, this happens before the formation of all organ systems.

Egg fertilizes and begins to actively crush. The egg is heading towards the uterus, on the way frees from the shell.

For 6-8 days, egg implantation is carried out - the introduction into the uterus. The egg settles on the surface of the mucous membrane of the uterus and using chorial patches is attached to the mucous membrane.

The embryo is actively developing, starting to clothe from the shells. At this stage, the primitives of muscle, bone and nervous systems are formed. Therefore, this period of pregnancy is considered important.

The embryo is formed by the heart, head, knobs, legs and tail :). The gummy gap is determined. The length of the embryo on the fifth week comes to 6 mm.

On the 7th week, the root of the eyes, stomach and chest are determined, and fingers appear on the handles. The kid has already appeared a sense authority - the vestibular apparatus. Embryo length - up to 12 mm.

. In the first week of pregnancy, the fetus, as such, not yet - only the formation of cellular accumulation is happening - blastocysts.

* 2nd week. Cells are developing rapidly, thrive with vile and fixed on the wall of the uterus. Blastocyst turns into the embryo. It is at this time that some signs of pregnancy may arise, in particular, periods are stopped.

* 3rd week. A very important point - a placenta is formed, inside which will be the fruit of the entire period before birth and get everything you need for life.

* 4th week. At this time, the fruit is an embryo - still microscopically small, its size is less than 1 mm. Doctors call this time with the beginning of embryonic development, which will last until the 2nd trimester.

* 5-week. The embryo has grown and increased to 1 mm and more. At this time, he begins to form a heart, larynx, trachea, its own blood system is developing.

* 6th week Future moms are considered the most touching - the embryo appears spout, ears, mouths and it becomes like an aliens, but so far without eyes - instead of them dark spots, similar to glasses.

* 7th week. The embryo has grown to the size of the pea - 6-8 mm. He already has arms and legs on which fingers appear.

* 8th week. Very important events occur at this time, the fruit reaches a size of 2 cm, crumbling fingers continue to develop, instead of "points" appear eyes, the truth, tightened by the film - centuries.

* 9th week. The most important for the baby and mom is the development of the brain and the central nervous system, muscle mass and cerebellum, from which the coordination of motion directly depends on.

* 10th week. You can congratulate you - the kid almost developed - he already has all its own bodies, and all the remaining time will be further developed. It became the size of almost the scene, and from this time it is no longer an embryo, but the fruit - you remember that the calendar of pregnancy for weeks of doctors is divided into embryonic and fruit development. Your tummy is still almost impaired, but has become tight. Now he will grow, because your baby will start rapidly develop.

The way the fetus develops on weeks is a real miracle. In just 38-40 calendar weeks, the embryo of several cells similar to the grape cluster becomes a baby with the most complex device of the body. Immediately after childbirth, he begins to use the whole arsenal skills and reflexes, quickly adapting to new living conditions. Our article is a brief description of the development of a child by day from the very moment of conception, the photo of the embryo and the features of different months of pregnancy.

human embryo in the first trimester

The first trimester is the most important and complex stage of human embryo development. It is at this time that the root of its organs is laid, nervous and other systems are formed. This period is associated with a lot of risks and requires the future mother of special attention to his health and lifestyle.

The first month of no accident is considered one of the most important and exciting, because it is now that a new life is born. At the beginning, his pregnancy was still never occurring, but the body of the future mother is preparing for it, adjusting the hormonal background and the work of the organs of the sexual system. All this is necessary not only for conception, but also for normal implantation of the embryo in the uterus and the start of its development.

From 1 to 14 days of the new menstrual cycle in the ovaries, the ripening of the follicle occurs, from which the egg cell is distinguished. It moves in the uterine tube and occurs with spermatozoa - one of almost 900 million falling into the vagina. After fertilization of the embryo-Morula "descends" into the uterus cavity and the endometrium is implanted - about 12-17 days of the cycle. At that moment, the actual pregnancy begins.

Fertilized egg continues to divide and speed into the wall of the uterus by the cage by the shell. In parallel, the formation of placenta and umbilical cord is launched - vital for the development of the fetus of organs through which it will receive nutrients. Now the embryo consists of more than 100 cells.

On this time in the development of the child, the first "jerk" occurs: the bookmark of all systems of the future kid begins. Especially important stage - the formation of a nervous tube, from which the brain and the entire nervous system are formed in the future. The embryo grows up to the size of the poppiece of a diameter of less than 1.5 mm, it is called an embryo from this period. It is implanted in implanted in the endometrium, which affects the hormone level of HCG. It is at 4 week that a woman can notice the latency of menstruation and early signs of pregnancy.

Embryo or Fruit?

In medical science, you can often find two concepts related to the child toaling the "Embryon" and "fruit". What is the difference between them?

How will the child will develop, its internal organs, systems, in various periods of intrauterine development of the fetus are determined by the genetic code that was transferred by sex cells of the mother and father.

- weeks

Speaking about the first week of pregnancy, you should clearly understand what exactly is taken for the reference point. If we talk about the obstetric weeks (regardless of that multiple pregnancy or not), then the first day of the last menstruation of the cycle is taken into account when the woman had unprotected sexual intercourse and, accordingly, conceived.

Sometimes the moment is taken into account when there was a contact without using contraceptives. Considering the day, receive the third obstetric week. If you take into account the date of the start of menstruation delay, get the fifth. In gynecology, viewing the intrauterine development of the fetus for weeks, more often focus on obstetric dates.

The first few days, even if it is a multiple pregnancy, are not characterized by any clear features. This time is the beginning of the menstrual cycle. The level of hCG (human chorionic gonadotropin) within the norm (5 me / ml for non-embled).

Trimesters and weeks, which is important to know the future mom

For the convenience of calculating pregnancy, obstetres are used to divide the total period of trimesters, which include numbered months and weeks.

Such detailed division allows you to accurately track the state of the future mommy and especially analyze the development of Baby:

It is important to remember that the first weeks of pregnancy is considered from the first day of the final menstrual cycle. This provides a practical opportunity to accurately produce all calculations on physical changes in the functionality of the body of the mother and the full development of the kid.

Power in the first (s) trimester:

Since proteins not only reduce the risk of fetal pathologies, but also are a building material for embryo cells, and folic acid (vitamin B9) contributes to the timely cell division and is responsible for the nervous kid system, their deficit in the body of a pregnant woman In the first trimester can lead to irreversible consequences for crumbs after birth. To prevent this, in a pregnant diet in 1 trimester, daily should include products rich in these elements:

From the fact that you eat in the first three months of pregnancy, the health of the future child depends, so refuse everything that can negatively affect the development of the fetus, and you will not have a tangible benefit:

second trimester and its features of its flow

Studying the obstetric weeks of pregnancy, the future motley can understand what is happening inside her tal, realizing how much the baby is developed.

On the 14th week, the body of the child is covered with a soft flush that protects it from the accumulating waters, and by 18 week the baby is able to perceive the voice of the mother and others.

By the end of the 19th week, the finiteness of the child becomes proportional, it develops the ability to yawn and suck the cam.

The end of 24 weeks the child is difficult to tumble, so he behaves calmer, but continues to pushed and pushed by subcutaneous fat, gradually gaining weight.

Pregnancy is a process in which the baby develops from two tiny parent cells. The development of the fetus for weeks of pregnancy is an exciting story about what exactly happens at each week of pregnancy, as the weight and growth of the fetus changes, what sensations arise in mom as the period of pregnancy increases. In the article, we will tell about what is interested in every future mother: when the baby begins to hear her speech, when and how the weight of the fetus changes, when you can make a photo of the fetus when ultrasound, than caused by the mamines of sensations during pregnancy and much more.

At the time of the appearance of the germ, the term of pregnancy is already 2 weeks. Why? Let's determine what we will consider the term. There are concepts of embryonic and obstetric period. The embryonic period of pregnancy is a true time from the moment of conception. Obstetric period - from the first day of the last menstruation. Obstetric period on average for 2 weeks more embryonic. During the ultrasound, in the map of a pregnant woman, in a hospital list will always indicate an obstetric period by the date of the last menstruation. But from the third week of pregnancy, the development of the fetus begins. Below you will find a description of each week of pregnancy: how the fruit is developing, which is happening with the uterus, as the sensations of the future mother change.

At the end of the second and beginning of the third week (on average, on the 14th day of the cycle), ovulation occurs. At this moment, the woman's egg is coming out of the ovary to the fallopian tube and where it meets with a sperm in the coming day. Of the 75-900 million sperm, which came to the vagina, the cervical canal reach less than a thousand. And only one will penetrate into the egg.

Sperm and eggs carry half a set of a chromosome of a future person. As a result of their merger, the first cell of the new organism is formed with a full chromosomal set - the zygote. Chromosome define the gender, the color of his eyes, and even character. The zygote begins to share and move to the uterine cavity. The path to the uterus will take about 5 days, the embryo will consist of about 100 cells. The next stage is implantation - the introduction of the embryo into the wall of the uterus.

The onset of pregnancy is the beginning of an amazing time for the future mother. Seeing two cherished strips on the dough, it is not tolerated to find out what is waiting for on the upcoming way to wear the crumbs. Today we will tell you how the development of the fetus is occurring on weeks of pregnancy, that at the same time the mother feels, and at what stages all organs and systems of the kid organism are formed.

point of reference: how to find out when the pregnancy has begun

The date of the beginning of the expectation of the baby at a woman's obstetrician expects during the first visit to the female consultation.

In the first week after conception, the embryo is actively moving in the uterine tube. After six days of active "travel", he falls into the uterus. Under the influence of progesterone (it is still differently called a hormone of pregnancy) The future kid is attached to the mucous membrane of the uterus, this process is called an implantation.

If the attachment of the embryo has been safely held, then the next menstruation will not happen, - the pregnancy began.

intrauterine development of the child

The development of the baby inside the womb, since the conception and until the moment of birth, it is customary to call a miracle, and for this there is every reason. Fortunately, medicine has studied quite well all the stages of the most important event in the life of a woman - pregnancy. Each future mother can accurately imagine what will happen to her and her baby throughout the nine months.

Each of the periods corresponds to its own event chronology. The formation of the child's organs, systems of life in its body and its direct growth is naturally moving in each period of intrauterine development. How this happens, to find out what and when is formed, you can learn in the resume table. It will be cognitive for future mothers who are interested in and important information about the development of the child at all stages of the occurrence of pregnancy.