Normal weight during pregnancy and delivery of a healthy child


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Normal weight during pregnancy is a topic of vital importance because the birth of a healthy child depends on normal weight during pregnancy.

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During pregnancy, a woman’s weight changes, as the fetus grows and the woman’s body rebuilds. During pregnancy, a woman puts on anywhere from 7 to 15-16 kg. However, every woman is different and her normal weight during pregnancy is individual.

Body mass index

A woman’s initial weight plays an important role. There’s a concept called body mass index, which is the ratio of a person’s body mass to his or her height. From this, we can approximately estimate the normal weight for a person. The result of body mass index may be defined according to the formula

I = kg/m2

m mass of the body in kg

h - height in m

The World Medical Association has recommended an approximate equivalence between body mass index and the degree of its correspondence to the norm.


Body mass index

The equivalence of person’s mass and height

16 and less

Big mass deficit

16 - 18

Decreased body mass

18 - 25

Normal weight

25 - 30

Body mass excess (initial stage)

30 - 35

Obesity of the 1st degree

35 - 40

Obesity of the 2nd degree

40 and more

Obesity of the 3rd degree

Women with insufficient weight as well as women with excessive weight are at risk of giving birth to an unhealthy child.

When gaining weight during pregnancy, a woman should follow approximate, physiology conditioned increases:

Normal weight during pregnancyNewborn’s weight is in average 10 - 11,7 pounds (3,0 3,5 kg)

Placenta’s weight is 2 pounds (600 g)

Water is 4 pounds (1200 ml)

Increase of the uterus is 2.5 pounds (750 g)

Breasts increase by 1,4 pounds (420 g)

Increase of blood volume is 5-6 pounds (1500-1800 ml)

Extracellular fluid is 5 pounds (1500 ml)

In general, a pregnant woman puts on 32.6 pounds (9,8 kg)

These are average numbers which depend on many factors, but there’s a correlation between the amount of weight a pregnant woman puts on, and the amount of excessive weight that remains after pregnancy.

The scientists in the State of Oregon have come to the conclusion that the excessive weight of a woman during pregnancy can contribute to the obesity of her child. Usually, such children are born with a high weight that afterwards may become excessive in an older age.

For a normal delivery, a normal amount of weight must be put on during pregnancy to give birth to a healthy child.

This is why you first need to determine your body mass index. Then, you should watch the weight gain attentively. If you put on little weight, your baby is likely to have a small weight. If you put on much weight, the baby’s weight will be great. This is fraught with difficulties during the delivery. In addition, excessive weight gain may cause difficulties with health such as elevated blood pressure, varix dilatation, and diabetes.

Weight gain during pregnancy

Time of weight gain

The initial weight is normal

The initial weight is in deficit

The initial weight excess

The initial weight obesity

Total weight during pregnancy

25 - 35 pounds

28 - 40 pounds

15 - 25 pounds

11 - 20 pounds

The 1st term

1 4.5 pounds

1 4.5 pounds

1 4.5 pounds

1 4.5 pounds

The 2nd term

1 pound per week

1. 2 pound per week

0.64 pound per week

0.45 pound per week

The 3rd term

1 pound per week

1. 2 pound per week

0.64 pound per week

0.45 pound per week

If you are expecting twins, the weight gain is somewhat different

Time of weight gain

The initial weight is normal

Expecting twins

The initial weight excess

Expecting twins

The initial weight obesity

Expecting twins

Total weight during pregnancy

37 - 54 pounds

31 - 50 pounds

25 - 42 pounds

The 1st term

1 4.5 pounds

1 4.5 pounds

1 - 4.5 pounds

The 2nd term

1.6 pound per week

1.5 pound per week

1.3 pound per week

The 3rd term

1.6 pound per week

1.5 pound per week

1.3 pound per week

During pregnancy it’s necessary to constantly control weight.normal weight

Your body is changing due to the pregnancy. Weight gain is an indicator of a normal pregnancy course.

If edema occurs, it’s because of water retained in the body. It’s a serious reason to visit a doctor.

Before pregnancy, it’s preferable that you lower your weight and gain normal weight during pregnancy.

This will help you to nurture a fetus without any complications and deliver a healthy child.

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