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3 weeks pregnant: what happens from conception, ultrasound, hurts, pulls the stomach, discharge
In the 3rd week, the fertilized egg has reached the uterus. It attaches to the endometrium. It is in this place that the fetus will begin its development. If the egg has time to securely anchor itself before the onset of menstruation, the pregnancy will be successful. Otherwise, it will not take place.
Description of the 3rd week of pregnancy
This period is decisive and affects the further course of pregnancy. From this moment, fertilization becomes real. Ovulation was to take place on the 12-14th day of the menstrual cycle.
The ovum rushes to the uterine cavity. She should finish her migration before her period begins. At the point of its attachment to the wall, the fetus begins to form. There she actively shares. At this time, it is decided how many children the future mother will have. Pregnancy can be multiple.
What happens during this period?
For the fetus, this week is the first in his life. The meeting of the sperm and the egg in the fallopian tube should have taken place no more than a day before. If this time is not enough, fertilization will not be successful.
The placenta forms at the site of implantation of the egg. The first villi and capillaries are born. The villi provide active nutrition for the embryo. They connect it to the mother’s body. So he will be able to receive nutrients and oxygen. A harmful effect from the outside has a negative effect on the embryo. This can lead to malformations.
The placenta secretes hormones that are required for the growth of the fetus. It provides the embryo with normal blood circulation. In the future, it will become a barrier that protects him from negative factors. But at this stage, she is not yet capable of performing a protective function. Therefore, the mother needs to control her lifestyle and nutrition.
The formation of the fetus from the moment of conception becomes more intense. The formation of the neural tube and crest begins. The notochord appears in the embryo. The organs of the future baby are laid:
- A heart;
- Blood vessels;
- Pre-buds;
- Primary gut;
- Trunk fold.
The embryo size is no more than 2 mm. Its diameter is 0,2 mm. Vital systems are already forming in him. The rudiments of the eyes and ears appear.
Good blood flow is essential to support the development of the placenta. If there is insufficient blood circulation, placental insufficiency may develop. This is a serious threat to the fetus. Certain medications, nicotine and alcohol can harm your baby’s development.
Early pregnancy signs are similar to those of premenstrual syndrome. The lower area of the uterus may be sore. The woman experiences weakness and fatigue. Appetite changes. The body needs more food due to hormonal changes. The harsh smells and tastes of some foods are disgusting. In the morning, the woman is nauseous. Strange taste preferences may appear.
The mom-to-be should take care of her diet. For the normal development of the embryo, fats are needed. Nuts, fish, and vegetable oils contain healthy fatty acids. They will reduce the likelihood of developing preeclampsia.
Those who are planning a pregnancy in advance can start taking vitamins and minerals for expectant mothers.
Lack of vitamins badly affects the process of intrauterine development. The formation of important systems and organs slows down. The risk of developing abnormalities increases. With a lack of vitamins, pregnancy proceeds with complications.
Women with a particularly sensitive organism notice the appearance of symptoms of fertilization in the early stages. The breasts can swell and feel uncomfortable to touch. The hormone progesterone causes the nipples to become rough and hardened.
The hormonal background affects the gastrointestinal tract. There is a feeling of heaviness in the abdomen, as well as heartburn. Saliva is excreted more abundantly. The uterus begins to enlarge and oppress the intestines. Because of this, his work slows down.
The volume of the mucous mass to be separated may increase. It should be free of lumps and flakes. A pungent smell is also not typical. The color of the substance can vary from white to pale yellow.
The presence of red or brown blood streaks is not abnormal. Heavy bleeding indicates embryo detachment. The lower part of the uterus can be pulled.
In the picture, the baby looks like a tiny dark spot. He has already formed the rudiments of the brain. The organs of the gastrointestinal tract begin to form. The production of initial blood cells is getting better. At the site of the future oral cavity, an oropharyngeal membrane is formed. The skeleton and muscles will develop from the neural plate in the future.
At this time, the expectant mother usually does not know about pregnancy. Severe symptoms will appear in a couple of weeks. Sometimes subjective sensations report the appearance of a baby faster than modern diagnostics.