Pregnant 4 week
Has entered the first 4 weeks, and you have not found their bodies change?
The embryo has been in the womb during the “implantation”, or “implant.” Implantation needs about 4-5 days to complete, and must have three conditions, namely, the zona pellucida in about 7 days after fertilization, must disappear, so that the blastocyst relief and direct contact with the endometrium; strong secretion of endometrial proliferation, interstitial edema, vascular dilatation and congestion; vesicles around the cell to differentiate into trophoblast cells and syncytiotrophoblast cell layers, including syncytial cells can secrete soluble protein decomposition enzyme endometrium to blastocyst implantation.
Embryos began to grow after implantation, when the brain’s development has begun, fertilized eggs are constantly dividing, forming part of the brain, another part of the formation of nerve tissue. Then pay special attention to strengthening nutrition, nutrition-rich brain cells and nervous system give a good growing environment.
During this period you may have a slight discomfort, and sometimes fatigue. Shaoanwuzao, you will immediately enter a variety of prenatal life.