How big is the belly when pregnant for four months

By the fourth month of pregnancy, the enlarged uterus has already protruded from the abdomen, and the pregnant woman's abdomen is noticeably bulging. At the beginning of the 4th month, the height of the fundus of the uterus is 2 to 3 horizontal fingers above the ischial tuberosity; at the end of the 4th month, the height of the fundus of the uterus is between the navel and the ischial tuberosity. From the appearance point of view, the size of the abdomen varies among different pregnant women and cannot be generalized. Generally, women who are fatter in body will have more obvious enlargement of abdomen. If you are thin, the enlargement of your abdomen will not be very obvious.

At four months of pregnancy, the fundus of the uterus should have left the pelvis, and the baby can be felt at least four fingers below the navel. In other words, the height of the fundus of the uterus can be felt in one's abdomen. However, the baby is not very big at this time, only a dozen centimeters. This situation is suitable for single fetuses without complications.

For some pregnant women with uterine fibroids or carrying twins or triplets, the height-to-width ratio of the uterine fundus may be larger. Some pregnant women even in the early stages of pregnancy will have a belly as big as that of five months, which may be due to obesity or uterine fibroids. Their uterus is larger than that of ordinary people when they are not prepared for pregnancy. Therefore, her uterine fundus was relatively high after she became pregnant, so the twins are of course larger than a single baby.

Three months after pregnancy, a pelvis grows out of the abdomen, also known as pregnancy. When you are four months pregnant, your abdomen will be bigger. The outline of the uterus can be felt in the lower abdomen. The fundus of the uterus is about a few fingers above the ischial tuberosity. Sometimes it can be reached between the ischial tuberosity and the belly button. This is an approximate range. The size of the abdomen is sometimes not related to the size of the test tube embryo. Therefore, in the fourth month of pregnancy, it is necessary not only to look at the size of the abdomen, but more importantly, to use the B-ultrasound size to more accurately estimate the development of the fetus.

At 4 months and 16 weeks of pregnancy, each of the fetus's organs has begun to take shape. The uterus is between the ischial tuberosity and the navel. Some people can already see a slightly bulging belly. The fetus at 4 months of pregnancy is about 16 cm long and has a head-arm diameter of about 12 cm. Some pregnant women can already feel the movement of the fetus in the uterus. However, the intensity of fetal exercise during this period is not great. The fetus is still in the critical period of development in the fourth month of pregnancy. Paying attention to the intake of high-quality protein, carbohydrates, and fresh fruits and vegetables is beneficial to the growth and development of the fetus.