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Pregnancy Stages - The First Trimester Of Pregnancy!

Jan 30, 2008
When a woman conceives, she as well as her partner may be keen to find out the changes that will take place and the way in which the baby grows. During the first trimester of pregnancy, the process commences with the woman's egg being fertilized and advances to the state where the fetus begins to look a lot like the baby it soon grows to be.

The duration of the pregnancy is about forty weeks. The pregnancy period is split into segments known as trimesters, each one lasting for about thirteen weeks. In the initial stage of pregnancy, called the first trimester, an expectant women's body has to adapt suitably to the pregnancy-related changes. A major part of these changes does not take place right away.

In the initial days of the first trimester of pregnancy, the zygote or the fertilized egg passes through the fallopian tubes where it in due course of time fastens itself to the uterine wall. There, the zygote turns into an embryo and this embryo initiates the cell differentiation process to enable the individual cells to form the various parts of the human body. It is at this time that the rudiments of the head, spinal column, heart, and digestive system start to develop.

Tiny nubs, which will form the arms and the legs, too, start to grow. However, facial features, right now, are not easily apparent, although a still not fully formed eye can be noticed by the first month end. At this point, the embryo is merely one-fourth inch long.

Now, in the second month of the first trimester of pregnancy, the embryo develops into a fetus. The fetus' organs start to act and it sets in motion the production of hormones. These hormones, in conjunction with the pregnant woman's hormones, can result in morning sickness, as the woman's body is not comfortable with these changes. Usually, it is only following the development of the fetal hormones that the woman's menstrual periods discontinue. Even with all these changes happening, the fetus is still a mere inch long.

In the third month of the first trimester of pregnancy, the fetus brings to an end the elementary process of development. The morning sickness experienced by the woman would have come to an end, and she would have begun to add conspicuous weight. By now, the fetus would have grown perceptible arms and legs. Teeny weenie fingers and toes are apparent. Soon teeth would start to grow. The facial features, by now are well defined and the fetus identifiable as a living being.

Internal organs are highly developed in this period. The digestive systems and the liver will start to function. The sex determination of the fetus is confirmed, despite the fact that it might not be visible as yet on the ultrasound scan. Being four inches in length, the fetus starts to exert greater stress on the bladder. Due to this exercising of great pressure on the woman's bladder, she experiences a frequent need to pee. This is quite normal and therefore should not be an undue cause of worry to the woman.
About the Author
Abhishek has seen many childbirths in his huge family! Visit www.Childbirth-Guru.com and Download Abhishek's FREE Report "How To Dress And Look Your Best During Pregnancy!". If you are an expecting mother, or have just delivered, you can get some very valuable information about Pregnancy and Childbirth. But hurry, only limited Free copies available! www.Childbirth-Guru.com
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