Fetal weight gain standard chart, pregnant mothers should pay great attention to their physical condition during pregnancy, because a good baby will grow up healthily in the mother's stomach, so the following is a standard chart about fetal weight gain.

Figure 1 fetal weight growth standard table With the increase of gestational age, fetal weight increases in direct proportion, but at the same time there are certain rules. We can judge whether the fetal development is normal by the following standard comparison table of fetal weight and gestational age.

Eight weeks pregnant, 1g, nine weeks pregnant, 2g, 10 weeks pregnant, 4g.

1 1 week, 14g, 12 weeks, 16g, 13 weeks, 20g.

Pregnancy 14 weeks, 20g, pregnancy 15 weeks, 50g, pregnancy 16 weeks,150g.

17th week, 150 to 200g,18th week, 200g,19th week, 15cm, 200g to 250g.

20 weeks pregnant, 280 grams pregnant, 2 1 week pregnant, 300 to 350 grams pregnant, 22 weeks pregnant, 350 grams pregnant.

23 weeks pregnant, 400g, 24 weeks pregnant, 500g, 25 weeks pregnant, 600g.

26 weeks pregnant, 800g, 27 weeks pregnant, 900g, 28 weeks pregnant, 1200mg.

29 weeks pregnant, 1300g, 30 weeks pregnant, 1500g, 3 1 week, 2000g.

32 weeks pregnant, 2000 grams, 33 weeks pregnant, 2200 grams, 34 weeks pregnant, 2300 grams.

35 weeks pregnant, 2500 grams, 36 weeks pregnant, 2800 grams, 37 weeks pregnant, 3000 grams.

3200 grams at 38 weeks, 3200 to 3400 grams at 39 weeks and 3200 to 3400 grams at 40 weeks.

Fetal weight gain standard table Figure 2 Comparison table of fetal weight and month

65438+ 10 June, just implanted, is a cell with negligible weight. The weight in February is about 2g, and in March it is about14.17-28.35g. After that, the weight gain is relatively fast. By April, the weight was about 170- 198g, in May it was about 453.6g, and in June it was about 793.8-907.6438+08g.

The weight was about1.13-1.59kg in July, 1.8 1-2.72Kg in August, and 3. 18-3.4Kg in September.

How to calculate fetal weight

Using the equivalent formulas of fetal biparietal diameter, abdominal circumference, head circumference and femoral length on the B-ultrasound checklist, the fetal weight during pregnancy can be calculated.

Common calculation formulas are:

Formula 1: fetal weight (g) =BPD (cm) ×900-5000.

Formula 2: Fetal weight (g) = 1.07× BPD (cm )× bpd (cm) +0.3×AC (cm )× FL (cm).

Formula 3: Fetal weight (g) = 17 1.48* abdominal circumference (AC) -2686.60.

Formula 4: Fetal weight (g) =747.42* femur length (FL) (cm) -2232.56.

In addition, it can also be calculated by the uterine height and abdominal circumference measured during pregnancy examination. The formula is: fetal weight (g) = uterine height (cm) * abdominal circumference (cm) 200 (where the fetus is in the basin: +200g, and the fetus is not in the basin: -200g).

Fetal weight gain standard table Figure 3 Normal weight range of pregnant mothers: It is reasonable to judge how much weight gain during pregnancy, and 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.

Before pregnancy, the uterus weighed about 50g. At full term, the average weight of uterus is 1000g, and the weight of placenta is 450 ~ 650g g. Amniotic fluid reached 1000ml in the 38th week of pregnancy and dropped to 800ml in the 40th week of pregnancy. Maternal blood volume reached its peak at 32 ~ 34 weeks of pregnancy, increasing by about 30% ~ 45%. At 40 weeks of pregnancy, the average fetal weight was 3 150g.

The root cause of excessive weight gain during pregnancy

1, worried about the baby's nutrition, in line with the principle of "one person to eat, two people to supplement", many pregnant mothers are always worried that the fetus is not nutritious enough, and even pregnant mothers want to add nutritional supplements without authorization, which is actually wrong. Food is not about how much you eat, but about whether you eat it right or not.

2, do not understand the importance of weight management, think that weight management does not matter, some pregnant mothers will think that weight management is no big deal, obesity will not affect the baby, leading to obesity during pregnancy. Too thin pregnant mommy thinks there is nothing wrong with returning to the pre-pregnancy state easily, which is wrong.

3, lethargy, and lack of exercise, due to the influence of hormones, pregnant mommy sometimes has lethargy, plus being spoiled by her family after pregnancy, rarely doing housework, and pregnant mommy rarely creates opportunities for exercise, leading to a slow rise in weight.

I don't know how to control my weight. Some pregnant mothers know the benefits of weight control, but eating is the type of obesity. Such a pregnant mother exaggerates that "drinking water can grow meat." They watch their weight gain but can't control it. Except for headaches, they let their weight gain.

I have tried very hard, but I still can't control it. I have been trying to control my weight during pregnancy, but I still can't control it. On the one hand, I am obese. On the other hand, I haven't worked hard enough, plus sleepiness and insufficient exercise, and my weight is easy to rebound.

6, eating habits are not good, like to eat high-calorie food, this kind of pregnant mommy, the gods are also difficult to save them, like high-calorie food, even the thin mother before pregnancy can hardly guarantee that she will not gain weight.