In the first week of pregnancy, the embryo that is fertilized by the sperm and reaches the uterus has started to increase its volume with mitosis. At this stage, the uterine wall continues to mature so that the embryo can settle properly. The maturation of the uterine wall is initially provided by the estrogen hormone, then the progesterone hormone secreted from the corpus luteum, which is formed by the rupture of the sac called the follicle and containing the egg cell, makes arrangements in the uterus to ensure that the embryo settles in the appropriate position in the uterus. As is known, every month, whether the fertilization of the egg cell occurs or not, the maturation and arrangement of the inner wall of the uterus occurs, and if the embryo does not form, the inner wall of the uterus is broken down with the help of some hormones and shed in the form of menstrual bleeding. In other words, menstrual bleeding can be seen as the removal of excess tissue formed in the uterus, which is an intra-abdominal organ, after an unsuccessful pregnancy. This cycle begins each month with the release of the mature egg cell in the right or left ovary, respectively.
While these changes are happening in your body, you are not aware of it when you are pregnant. Only during this process, some obvious changes can occur outside your body. These changes occur thanks to the intensely secreted fertility hormones. These changes, which can also be called symptoms, usually appear in many women as breast tenderness and ongoing pain in the groin and abdomen. In addition to these symptoms, frequent urination can also be seen due to the increase in body fluids and the pressure on the bladder by the uterus, which is maturing and expanding to prepare for the placement of the embryo. This situation can be seen more frequently in the later stages of pregnancy as the baby begins to grow.
While these symptoms begin to be felt in your body, if the embryo has formed, it increases the number of cells and thus its volume with mitosis. These cells, which form in the later weeks of pregnancy, will begin to differentiate with some control mechanisms and form tissues and organs. The formation of your baby's organs actually occurs when single-type cells take on different tasks thanks to different mechanisms. This differentiation largely occurs when the nutrients in the fertilized egg cell polarize and go to different areas within the egg cell. In this way, the cells increase in number, while each cell takes in different amounts of nutrients and becomes able to undertake different tasks.
Comments