Weight gain and change during pregnancy, women need to pay attention to many things after pregnancy. Every woman will worry about the same thing during pregnancy, that is, weight gain, because pregnant mothers are also struggling to provide adequate nutrition for the fetus during pregnancy. The following are the changes in weight gain during pregnancy.
The change of weight gain during pregnancy is 1. The weight gain curve during pregnancy is mainly related to the pre-pregnancy weight. Pregnant women with normal weight can gain 1 1.5- 16kg during pregnancy, with an average weekly gain of 0.5kg in the second and third trimesters. If you are a low-weight pregnant woman before pregnancy, you can gain more weight during pregnancy by 12.5- 18kg, with an average of 0.8kg per week in the second and third trimesters.
If you are an overweight pregnant woman before pregnancy, the overall weight gain during pregnancy is less, you can increase by 7- 1 1.5kg, and the average weekly weight gain in the second and third trimesters is about 0.3kg. For obese pregnant women before pregnancy, the overall weight during pregnancy should be controlled obviously, only 5-9kg, and the average weekly weight gain in the second and third trimesters can only be 0.27kg.
The increase of pregnant women's weight during pregnancy is based on the difference between pregnant women's personal physique and pre-pregnancy weight, so the standard of increase is naturally related to these factors and depends on different factors. Most pregnant women belong to the standard weight range before pregnancy, so the weight gain during pregnancy after pregnancy generally does not exceed 12 kg. Among them, the weight of the fetus accounts for about one quarter, and the weight of placenta and amniotic fluid accounts for about one sixth.
The weight of pregnant women before pregnancy is measured according to a scientific term body mass index. The value of body mass index is determined by height and weight. The calculation formula is the square of weight and height, with weight in kilograms and height in meters. When the body mass index value is less than 18.5, the normal weight gain during pregnancy is less than13 kg;
When its value is between 18.5-25, the normal weight gain range is 8-10; When the body mass index is greater than 25 and less than 30, the normal range is between 5 and 7 kilograms; If the body mass index is greater than 30, pregnant women should ask the doctor about the normal range of weight gain during pregnancy.
Changes in weight gain during pregnancy 2 How much weight gain during pregnancy is appropriate?
In fact, every pregnant mother's situation is different. During pregnancy, the weight gain of pregnant mommy is also different. But pregnant mommy can estimate the ideal weight gain during pregnancy according to related variables.
To estimate the ideal weight gain during pregnancy, we need to refer to the pre-pregnancy body mass index (IBM). The index involves the square of weight and height, that is, body mass index = weight kg/height m square.
According to the body mass index, it is recommended to gain weight during pregnancy as follows:
IBM≤ 18: the maximum weight gain is 20kg.
IBM is located between 19 ~ 22: the weight gain is about 15 kg.
IBM is located between 22 and 23: the weight has increased by about 12kg.
IBM≥24: Weight gain shall not exceed 10 kg.
Generally speaking, pregnant mothers who are slightly fat in the first trimester are most likely to be overweight. If the weight gain momentum is too strong, they should check themselves in time and brake properly.
Weight gain at different stages of pregnancy
In fact, gaining weight during pregnancy does not mean that you need to gain weight every month. In fact, sometimes the fastest stage of weight gain is in the third trimester of pregnancy. Some pregnant mothers may not gain weight at the beginning of pregnancy, but don't worry too much, because weight gain during pregnancy is actually phased.
1, early pregnancy
Before 12 weeks of pregnancy, the fetus is still in the stage of fertilized egg differentiation and formation. At this time, it is not recommended that the weight of pregnant mothers change too much, and a balanced diet can supplement the necessary nutrition.
2. From 0/3 week of pregnancy to 27 weeks of pregnancy, fetal hair organs begin to develop and mature.
At this time, pregnant mothers need more nutrition, and the weekly weight gain can be about 0.6 kg to 1 kg;
3. It is normal to gain weight from 1 kg to 1.2 kg every week after 28 weeks of pregnancy.
If overweight or obese people need to get smaller.
Overall distribution of weight gain during pregnancy
The weight gain of pregnant mothers mainly comes from four categories:
1, the fetal weight increased by 5.9-8. 16 kg.
The weight of pregnant women has increased, and the largest proportion is fetal weight. Fetal weight will increase with gestational age, reaching 1 kg at 24 weeks, 4 kg at 32 weeks and 6-8. 16 kg at 40 weeks.
2. Pregnant women's own fat reserve is 5.44-7.26 kg.
The fat reserve of pregnant women refers to the fat content that pregnant women increase through diet during pregnancy, and the fat content of pregnant women reaches a peak of 7.26 kg at the 40th week of pregnancy. This part of fat content will not disappear with the delivery of pregnant women, but will still remain in pregnant women after delivery. Mothers can lose weight through exercise or fitness.
3. Body fluids, blood flow and breasts of pregnant women increased by 5.42-9.08kg during pregnancy.
At different stages of pregnancy, the contents of body fluids and blood flow of pregnant women will also increase or decrease, and will gradually fade after delivery.
4. Placenta, amniotic fluid volume and uterus increased by 4.96 kg during pregnancy.
Amniotic fluid will gradually increase in the first and second trimester of pregnancy, but in the third trimester, the amount of amniotic fluid will gradually stabilize, generally between 800- 1000 ml.
During the whole pregnancy, pregnant women * * * increased by 2 1.72-29.46kg, but after delivery, the weight of pregnant women will decrease by 1.32- 1.5kg, and the weight of fetus, amniotic fluid and placenta will decrease.
Changes of weight gain during pregnancy 3 Normal weight range of pregnant women
In order to judge how much weight you want to gain during pregnancy is reasonable, we need the body mass index value. The body mass index before pregnancy is the body mass index, which is often used to estimate the weight standard of pregnant mothers during pregnancy. We can also calculate it through a simple formula.
Normal weight range of pregnant mothers: In order to judge how much weight you want to gain during pregnancy is reasonable, we need the body mass index value. The body mass index before pregnancy is the body mass index, which is often used to estimate the weight standard of pregnant mothers during pregnancy. We can also calculate it through a simple formula.
Body mass index = weight (kg) ÷ height (m) 2
For example, if the bird's body mass index = 50 ÷ (1.6×1.6) = 19.5, then the bird's body mass index is equal to19.5.
Pregnant mothers' body mass index before pregnancy can be divided into three categories: lean, standard and super heavy.
Then you know whether you need to gain weight before pregnancy, and there is a growth range.
Body mass index before pregnancy:
Thin type: body mass index = 18.5 and below.
It is suggested to gain weight during pregnancy 12KG- 15KG.
Thin mothers may not gain weight during pregnancy because of physical reasons. Therefore, it is very important to improve the quality, eat more high-quality food and pay attention to a balanced and diverse diet when the quantity may be insufficient.
Standard type: body mass index = 18.5 to 22.9.
It is suggested to gain weight during pregnancy 10KG- 14KG.
Standard mothers usually weigh within the standard range, and the most common mistake during pregnancy is to eat a lot to make up for it, so that they gain weight quickly. It is recommended that my mother check her weight more at ordinary times and adjust it if she finds that she is gaining weight quickly.
Obese type: body mass index =23 or above.
It is recommended to gain 7KG- 10KG during pregnancy.
Obese mothers are overweight and prone to gain weight during pregnancy, so they will gain less weight during pregnancy. Too much body fat will also affect the baby's development, so it needs to be checked frequently to prevent pregnancy complications.
Where did all the weight gain go?
Don't think that every weight you gain is on your baby, it's only a small part! And your blood, muscles, body fluids and tissues are also increasing to support the growth of the fetus.