How big is the belly at 18 weeks of pregnancy?

Pregnancy is a very difficult thing for mothers because during this period there will be various troublesome problems that need to be solved. It also requires careful and patient understanding of all aspects of pregnancy, which is very physically and mentally exhausting. As the pregnancy progresses, the pregnant woman's belly will gradually get bigger. The size of the belly will be different in each period, so today we will explain how big the belly is at 18 weeks of pregnancy.

1. Time: 18th week of pregnancy, which is the fifth month of pregnancy.

2. Fetal development: This week, the fetus is about 20 cm long and weighs 200 grams. The average biparietal diameter was 4.25±0.53cm, the average abdominal circumference was 12.41±l.89cm, and the femur length was 2.71±0.46cm. The pads on the fetus' fingertips and toes are almost formed, and fingerprints are gradually appearing. The baby's eyes move to the correct position, the ears move up toward the head, the down gradually covers the whole body, and the intestines begin to gurgle.

3. Physical changes of pregnant women at this time: At 18 weeks of pregnancy, the weight of pregnant women has increased by about 2.7kg. The two originally parallel rectus abdominis muscles in the abdomen gradually separate and stretch to both sides of the body (the abdominal circumference is approximately between 76-89cm) to accommodate the growing uterus. The buttocks will also become wider and thicker. This phenomenon is mainly affected by progesterone. On the one hand, fat is easily accumulated, and on the other hand, the stability of the sacroiliac joint and pubic symphysis on the pelvis will deteriorate. Coupled with the pressure of the fetus, the gap between the pubic symphysis will become wider.

During this week, pregnant women's appetite will become much better than before. In addition, they should also pay attention to eating more healthy food with appropriate nutrition and not excessive. Dairy products, soy products, fresh fruits, fresh meat, various natural vegetables, etc. all need to be carefully prepared for pregnant women to eat. If a pregnant woman feels calcium deficient, she also needs additional calcium supplementation. After reading the above introduction, I hope it will be helpful to mothers who are confused about how big the belly is at 18 weeks of pregnancy.