Sunday 15 September 2013

Pregnancy



Pregnancy! Pregnancy will occur when there is fertilization of ovum (from woman) with a sperm (from man) which eventually leads to the development of an embryo or fetus in a woman's uterus.

Ovum + Sperm = Embryo/Fetus


 In pregnancy, there can be multiple  gestations as in the case of twins or triplets. Childbirth  usually occurs about 38 weeks after conception; in women who have a menstrual cycle length of four weeks, this is approximately 40 weeks from the start of the last normal menstrual period (LNMP). Conception can be achieved through sexual intercourse or assisted reproductive technology. 

An embryo is the developing offspring during the first 8 weeks following conception, and subsequently the term fetus is used until birth. In many societies' medical or legal definitions, human pregnancy is somewhat arbitrarily divided into three trimester periods, as a means to simplify reference to the different stages of prenatal development which is 1st trimester, 2nd trimester and 3rd trimester. The first trimester carries the highest risk of miscarriage  (natural death of embryo or fetus). During the second trimester, the development of the fetus can be more easily monitored and diagnosed. The beginning of the third trimester often approximates the point of viability, or the ability of the fetus to survive, with or without medical help, outside of the uterus.

During pregnancy, we need 200-300 more calories intake of food and more nutrients such as Vitamin A, B, C, D, E, K to maintain optimum health of the mother and to have healthy baby. As a result of insufficient nutrients and vitamins to the mother and baby can lead to miscarriage, anemia, low blood pressure and also can lead to have pre-mature birth to the baby.


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