4 Weeks Pregnancy

During 4 weeks pregnancy, while the usual early pregnancy symptoms such as mood swings, nausea and cramps are experienced, some women may experience unpleasant symptoms like PMS (pre-menstrual syndrome). The first weeks of pregnancy and most expectant mothers are not even aware that they are pregnant. Just one week after fertilization, baby formation is still counted in its infancy. You can see all the details of what happens during the 4 weeks gestation period, how the signs of pregnancy begin to appear.

What Happens During the 4 Weeks Pregnancy Period?

During 4 weeks pregnancy, your body changes very actively. Changes in this period may vary. While some women experience the usual early pregnancy symptoms such as mood swings, nausea and cramps, some women may experience uncomfortable PMS (pre-menstrual syndrome) -like symptoms. Some women may even pass this period without feeling any of them. At 4 weeks of pregnancy, your fertilized egg and your uterus are connected and as a blastocyst, your baby begins to attach itself to the lining of the uterus. In approximately 30% of this period, implantation bleeding occurs due to the tunnel opening of the cell clusters in the uterine wall. Implantation bleeding usually occurs quite limitedly and is in light pink, light red or light brown shades. In addition, this bleeding occurs earlier than the estimated menstrual period and does not indicate that something went wrong or there was a problem in the menstrual period. You may feel a slight pressure in your abdomen (nothing to worry about!) And some growth in the breasts with slight sensitivity (but be prepared for more growth attacks) may also occur. 12 days after fertilization, the egg begins to secrete the pregnancy hormone called HCG (human chorionic gonadotropin). HCG stimulates the corpus luteum and produces progesterone and estrogen so as not to separate the placenta by supporting pregnancy. This continues until the placenta reaches approximately 6 weeks.

4 Weeks Pregnancy
4 Weeks Pregnancy

How can a Baby be During the 4 Weeks Pregnancy Period?

The 4 weeks pregnancy is the starting signal of the embryonic period. From this week to the 10th week, all organs and even some functions of your baby begin to develop. As a result, this period is the most vulnerable period in which any obstacles may occur in your baby’s development. During this period, the baby is in the form of an embryo and its size is as much as a poppy seed. This poppy seed (up to 3 mm) size embryo contains layers called epiblasts and hypoblasts and although they are quite small, they are divided into three different sections. In the first part, the brain and central nervous system take shape and begin to develop as nerve tubes. In the other two parts, the heart and circulatory system are shaped and the early stages of lung and intestinal development begin. Epiblast and hypoblast layers are the structures that enable the development of all organs and body parts of the baby. At this stage of pregnancy, the primary placenta also consists of two layers and the cells of the primary placenta open tunnel-like structures throughout the uterus.

4 Weeks Pregnancy Signs

  • Bloating Abdomen: Your body prepares itself for the baby, which it will grow rapidly in the coming months. You may experience some bloating, especially in your abdomen. Your uterus wall begins to thicken a little and having swelling means your uterus needs more space than usual.
  • Mild Bleeding or Spotting: Some women experience spotting during a 4-week pregnancy and this is called implantation bleeding. If bleeding is intense, staining lasts more than two days, or if you have other concerns, contact your doctor immediately.
  • Mood Changes: One of the other symptoms you can experience during a 4-week pregnancy is mood changes. Emotions and severe emotional changes at these extremes triggered by rising hormone levels can be seen most intensively in the first and third trimesters. Relaxation, exercise, massage, sleep and balanced nutrition are the easiest methods to make you feel better.
  • Sensitivity in the Breasts: Like your stomach, your breasts begin to prepare for an important task that is to feed your baby. The number of milk glands increases and the fat layer thickens, resulting in your breasts growing.
  • Nausea in the Morning: In a 4-week pregnancy, your stomach can get sick not only in the morning but at any time of the day. This situation may differ among women. Some have only mild nausea and others have vomiting. If you are experiencing the same things, you can be sure that you are not alone. Approximately 85% of women experience morning sickness during their pregnancy. We would like to remind that these symptoms that may cause discomfort usually decrease in the second trimester.
  • Light Discharge: It is normal to have an increase in vaginal discharge in the fourth week of pregnancy. Stream; should be sticky, colorless or white. If there is a bad smell or tenderness or itching in the vaginal area, contact your healthcare provider.

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