The abdomen during pregnancy is a joy for the mother, a home for the baby, an object of attention for outsiders and doctors. This is the center of the main events that happen to you during this period. No wonder that it will be listened to, felt, measured and evaluated throughout the term.
Your stomach from the moment of conception will continuously grow: smoothly, gradually, sometimes irregularly, but inevitably. Because the fetus, uterus and the amount of amniotic fluid will increase in size. That's why the abdominal circumference for the gynecologist leading your pregnancy is so informative. All of these indicators (and therefore a successful pregnancy in general) can be indirectly judged based on the indices of the circumference of the tummy at different times.
So, the estimated weight of the baby can be calculated according to the following formula:
Fruit mass (g) = VSDM (cm) x abdominal circumference (cm).
VSDM is the height of the standing of the uterine fundus, which on average corresponds to the week of pregnancy (that is, at 20 weeks, the SDDM will be approximately 20 cm). It is important to correctly measure the indicator: the abdomen circumference is measured at the level of the navel and lumbar deflection, the woman should lie on her back on a flat solid surface, relax, legs extend along the length, the bladder should be emptied.
The error of this method of calculating the weight of the fetus is 150-200 g, doctors say. But moms are indignant: very often it is 1 kg or more! Well, this is also influenced by other factors, the official medicine gives an unintelligible explanation.
Whatever it was, but the abdominal circumference during pregnancy should normally fit within certain limits - depending on the term. At the finish, the abdominal circumference reaches 100 cm (average 96-98 cm at 36-40 weeks).
These are only approximate guidelines. In each particular case, they may differ slightly (depending on individual characteristics), but not very much.
If the abdominal circumference is much less than expected, this may be a sign of a delay in fetal growth or lack of hydration. Elevated indices of the abdominal circumference during pregnancy can talk about too large a fruit, polyhydramnios, obesity, incorrect presentation, as well as the development of a tumor - chorionepithelioma.
Of course, any of these deviations is dangerous and requires correction. But assess the situation should only the doctor during the examination - do not make any conclusions yourself. After all, on the circumference of the abdomen is affected by many innocuous factors: your bundle, the propensity to fullness, the position of the fetus. Remember also that with a multiple pregnancy, the abdominal circumference is always greater. Focus on your own feelings and well-being.
Be healthy and happy!