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The Process of Fertilization and the Occurrence of Pregnancy
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Being a mom is the most exciting time. Pregnancy that occurs as a result of the fertilization process, is the most anticipated moment. The mystery of conception that occurs in the body, can not be felt or realized until pregnancy occurs a few weeks.
The occurrence of conception and pregnancy can not be separated from the role:
Hormone
Namely chemicals that are produced in certain parts of the body. Hormones circulate with the bloodstream and affect certain parts of the body. For example the estrogen hormone or female sex hormone, made in the ovary. Estrogen has a different effect on a woman’s body. In puberty, estrogen helps the growth of breasts and controls menstruation. In adult women this hormone is important for pregnancy.
Ovulation
Since birth, baby girls already have eggs. Early in childhood, he began to lose eggs. But until the age of 50, a woman still has 1,000 eggs. The ovulation cycle is triggered by hormones that are controlled from the pituitary gland in the brain.
This gland releases the hormone FSH (follicle stimulating hormone) which stimulates follicles in the ovaries. FSH stimulates about 20 follicles on the surface of the ovary to grow. In the follicle there is a developing egg cell.
Another hormone, which is estrogen which is produced in the ovary. In response to increasing estrogen, the largest follicle continues its development. That’s why pregnancy often only produces one baby.
Whereas LH (luteinizing hormone), also produced in the pituitary gland, causes follicles in the ovaries to release eggs. This egg release is called ovulation. Ovulation generally occurs in the middle of the cycle or 14 days before the first day of menstruation. This cycle is controlled by hormones.
Certain hormones ‘tell’ the ovary to release eggs and prepare the body to get pregnant. After ovulation, empty follicles form an arrangement called the corpus luteum which produces a hormone called progesterone. Progesterone will increase after ovulation and prepare the uterus to receive fertilized eggs.
Fertilization by sperm cells, if that happens, will occur in the fallopian tubes and then move towards the uterus. If the egg is not fertilized or the embryo is not implanted in the uterus, the level of progesterone decreases and menstruation occurs. All cycles will begin again.