the process of pregnancy

pregnancy is a state when the fetus was in the womb of a mother. This process begins denan convergence process that has been cooked egg and sperm cells. Ovulation is part of the normal menstrual cycle, occurs about 14 days before menstruation. The egg is released to move to the end of the fallopian tubes that funnel-shaped, is the site of fertilization. Blastocyst implantation is sticking to the wall rahim.Blastosis usually embedded near the top of the uterus, the blastocyst wall has a thickness of 1 layer of cells, except in certain areas consist of 3-4 cells. cells in the outer embedded in the uterine wall and form a placenta while the cells on the inside of the wall thickness of blastocysts will develop into an embryo. The placenta produces hormones that are needed by the mother and fetus. Implantation begins on day 5-8 after fertilization and was completed on days 9-10. Formation of a perfect placenta is usually completed at weeks 18-20, but the placenta will continue to grow during pregnancy and at birth weighed about 500 grams.

New embryos are known in blastocysts after 10 days of conception.
Then came the formation of an area that will become the brain and spinal cord, while the heart and blood vessels began to be formed on days 16-17. The heart begins to work the day of the 20th and then appear blood cells. The organs of the body organs begin to form perfect at the age of 12 weeks except the brain and spinal mendula which will continue to grow and improve throughout the pregnancy occurred. The period of this period is the period when the most vulnerable because of the virus and the effects of drugs.