The first consists of the embryo

Pregnancy begins in all women from the ovulation period, and fertilization of the egg, and the passage of this egg fertilized from the fallopian tube until it reaches the uterus and implanted in it, and this stage may not feel the woman in anything but fatigue and fatigue, and at this stage are formed some organs of the body of the fetus, : The lens, the sources of limbs, as well as his throat and others.

Stages of fetal growth

The first week of fetal development: The fetus is an egg fertilized with a sperm, the problem of the so-called zigot, which begins to divide during the direction of the endometrium for the implantation, as the size of zigot does not exceed 0.2 mm, it should be noted that the implantation after the enrichment by six Days, and this implantation causes the descent of some blood drops, as the body stimulates the secretion of pregnancy protein, and this protein is important until the body accepts the fetus.
Fetal in the second week: stimulates the formation of the plastic, and feeds from the sachet, and since the umbilical cord is not fully developed, the fetus takes some of it.
Third week: The size of the fetus as the size of the poppy seed, and consists of three layers is an inner layer, middle and external, and these layers will form the nervous system, brain and stomach, in addition to internal organs and bones, and the fetus can be seen inside the bag of pregnancy, The circular part is the head, the older is the backbone, and it is possible to observe the heartbeat of the embryo, as it starts building its bones, so it consumes large amounts of calcium.
The embryo in the fourth week, resembles the space creatures; because his throat and inner ear as well as the lens of his eye have been formed, and formed both hands and feet, while the tail is the backbone.
The fifth week of pregnancy: The fetus’s length is approximately six millimeters. Its main organs begin to grow, such as the heart, brain, liver and kidneys, as well as the head, which becomes larger than the rest of the body. The vital fetus.
Week 6: The fetus has a fetus length of eight millimeters, and it is also fast growing, and its heart is quick to pulse, and it is able to circumvent itself, and its body and neck start straight.
The seventh week, the fingers of the hands and the old begin to form, the length of one and a half centimeters, while the volume became the size of a grape, and begins to move but his movement is intermittent, and liver produces red den cells dramatically.