4 weeks of pregnancy, your baby is in the process flourished. Baby with black sesame seeds shaped like the barrel-like notes wrapped around the barrel of the amniotic fluid, composed of three parts: the mesoderm, ectoderm and endoderm. This is a very important week when the foreign cells are divided into vital organs from brain turn, marrow and neural tube, nerve, spine. This class will also grow hair, skin, nails, mammary glands, the sweat, the enamel.
This is followed by mesoderm: was the formation of the heart and circulatory system. Rudimentary her heart was divided into compartments, beating and pumping blood throughout the body within days. This will be the formation of muscle, cartilage, bone and tissue under the skin on the back. Finally endoderm: where initialization lungs, intestines, excretory system, thyroid, liver, pancreas of the baby.
Week 4 this pregnancy signs have started a lot clearer: the mother will be more sensitive to smell, began to see fear (or like) some odor, there are many mothers at the start of morning was always the smell afraid of her husband. Breasts become more sensitive, taut chest and started to change in size, color. At the same time the mother can change the mood, irritability and angry. There are some mothers are apt to cry or think at this stage.
The body fatigue, dizziness or fever can be mild, many mothers do not know they are pregnant, so when there are signs this to avoid taking antibiotics , this is very dangerous for the fetus, can cause defects or miscarriage. Best to consult a physician before using any medication for themselves. Besides the mother to rest, relax, maintaining their good health, build a healthy life.
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