How quickly the uterus grows during pregnancy
The growth of the uterus during pregnancy is due togrowth of an embryo. There are periods when the uterus grows faster, and periods when its increase does not practically occur. Once every few weeks, the obstetricians check the height of the standing of the uterus bottom, comparing the indicator with the rates for the gestation period. If the pregnancy is multiple - the uterus grows faster. The speed of growth of the uterus is affected by many factors: its size before pregnancy, the number of births in history, the constitution of a woman and the presence of features of the structure of the uterus.
First trimester: the increase in the uterus has only begun
In the first 3 months, pregnancy is almost imperceptible. The embryo is small at the beginning of pregnancy, but in 12-14 weeks it grows from several cells to 6-7 cm. During this period, the size of the embryo and the size of the uterus practically do not depend on the constitution of the woman and other individual features, therefore the size of the uterus and the size of the embryo in the first trimester are important for diagnosis. You can determine the duration of pregnancy with an accuracy of two weeks, to suspect deviations in the development of the embryo. The height of the bottom of the uterus in centimeters corresponds to the period of pregnancy. To find out this value, an obstetrician centimeter tape measures the distance from the upper point of the uterine fundus to the pubis. The size of the pregnant uterus in the first trimester depends on the size of the uterus before pregnancy. From 3-4 months it ceases to play a significant role. Second trimester: when the secret becomes explicit
In the second trimester the future child is no longerenough space in the small pelvis, in addition, during this period there is a basic set of mass and growth of the fetus. The uterus grows, and the stomach also grows. Approximately from the 20th week the belly is already noticeable to others. The size of the abdomen in the second trimester depends on the constitutional features of the pregnant woman. In women with a normal and broad pelvis, the abdomen becomes visible later - the size of the pelvis is enough to accommodate the growing uterus. If the pelvis is narrow - the uterus is not enough space, and it previously goes beyond the pelvis. There are also the physiological features of a woman. Muscles, being a corset, support the uterus and the growing abdomen. The stronger the abdominal press, the later pregnancy will be noticeable. In the miscreasing muscles can be weakened, and the uterus is already ready for growth - it means that the stomach will be noticeable earlier. Features of the fetus affecting the size of the uterus and abdomen
If the fetus is located on the back of the uterus, thenis closer to the spine, then visually the growth of the uterus will be less noticeable, with the front presentation - that is, closer to the abdominal wall, the growth of the uterus is clearly visible, the belly is already clearly visible by the 20th week. In the first trimester, the size of the embryo depends on the gestation period in the second, the constitution of the future child also comes to the forefront. Genetic features of the parents and the quality of nutrition of the pregnant woman seriously affect the growth of the fetus and uterus. In the case of multiple pregnancies, the uterus grows much faster. Also, some pathologies can be suspected for the growth of the uterus: with a bubble drift, the size of the uterus does not match the time, it increases due to a pathologically enlarged placenta; in case of polyhydramnios, the uterus also grows faster, and if the water is low, the height of the standing of the uterus bottom lags behind the norm. trimester of the uterus above the umbilicus about 7-8 cm. It is important to visit an obstetrician to notice violations in time and take the necessary measures.Third trimester: rapid growth
During the last 3 months of pregnancy, the fetusincreases from 700 g to 3-4 kg, and growth - from 26-28 cm to 40-50 cm This rapid increase in size requires the growth of the uterus. Some women feel itching and tightening of the skin, stretch marks may appear. Malnutrition and intrauterine growth retardation are the main reasons for the slow growth of the uterus, with uterine polyhydramnios increasing faster than normal. By 36-38 week, the height of the standing of the uterus bottom reaches its maximum - the growth of the fetus practically ceases, at the last stage there is an increase in the subcutaneous fat of the future child. Does the uterus occupy almost the entire abdominal cavity? and its outlines are clearly visible. Approximately at the same time (36-38 weeks) in most pregnant women the uterus starts to fall into a small pelvis. One morning a woman wakes up and feels relieved: she has heartburn, the dyspnea has disappeared, it has become easier to walk - this means that the delivery is very close. Inform your obstetrician that the uterus has lowered, and begin to prepare yourself for delivery. The course of each pregnancy is individual. In the first pregnancy, the abdomen could be small due to the location of the fetus on the back of the uterus, a good muscular corset and a small fetus, then in a second pregnancy, a small belly may be a result of lack of hydration or a delay in the development of the unborn child, so monitoring the obstetrician and timely passage of the necessary diagnostic procedures.
