Fifth and Sixth Week Pregnancy: Layers Starts To Form and Develop

When a pregnant women enters into the fifth week of pregnancy she goes through certain developmental stages of her baby. The main changes that a pregnant woman goes through are the layers formation and development in the fifth and sixth weeks of pregnancy.

The embryo is in the uterus and cells are growing and multiplying furiously.  In the 5 weeks pregnant women, the embryo is still like a small tadpole. The tadpole is composed of three layers: ectoderm- the outer layer, mesoderm-middle layer and endoderm- inner layer. All these layers later transform into different organs and tissues of the fetus. One of the main developments in the 5 weeks pregnant women is neural tube. Later, this tube leads to formation of brain, spinal cord, backbone and the nerves. These all form from the top layer which is ectoderm. Not only this, the top layer helps in origination of nails, tooth enamel, skin and hair. In the middle layer, heart and the circulatory systems develop. The heart which forms in this week also divides into different chambers. At the end of this week the heart also starts pumping blood. The middle layer namely known as mesoderm also forms subcutaneous, cartilage and bones of the baby. The third and the layer named as endoderm leads to formation of lungs, urinary tract, intestine, liver and pancreas.

The five weeks pregnant women placenta and umbilical cord also are in the phase of development and are also performing their main duty that is to deliver nourishment and oxygen to the baby in required quantity.  There are some of the symptoms which are related with the five week pregnant women like sore breast, fatigue, and urination. Some of the pregnant women also feel nauseated in this week of pregnancy.

During sixth week pregnancy, you will notice changes of major developments. This week is amazing is a sense that baby’s nose, mouth and ears are forming which means the face of the baby is more likely to develop. In the uterus of 6 weeks pregnant women, the oversized head would form and dark spots also forms where eyes and nostrils will develop. Small depressions on the sides of the head would form which in turn lead to ears formation later. Legs and hands protruding buds are formed in the 6 weeks pregnant women baby.

Certain symptoms of the sixth week are: nausea, vomiting and increase in blood flow. In 6 weeks pregnant symptoms might also include mood swings. You might start feeling moody, at one time of the day, you will feel happy and joyful and at other, you might not. Spotting or bleeding in the week is also being observed in some of the pregnant women.