How big is the belly in 4 months of pregnancy

Not to mention other body changes during pregnancy, the most obvious one is the enlargement of the belly. This is actually very easy to understand. The fetus develops in the uterus located in the belly. As the fetus continues to grow and become larger in size, the pregnant woman's belly will also become significantly larger. The size of the belly varies greatly at different stages of pregnancy, and there is actually an approximate medical data on belly size.

When the pregnant woman is four months pregnant, her belly is not very big, but it can be seen. During this time, the mother's weight will increase by 2 to 4.5 kg, and many clothes will no longer fit. During this period, the fetus is in a period of rapid growth, and its length may increase from 13 cm to 17 cm, which is a very fast speed. The fetus weighs about 200 grams, and the eyes that were originally tilted to the sides begin to focus forward. The fetus's bones have almost become rubber-like cartilage at this time and begin to gradually harden.

At this time, the girl's vagina, uterus, and fallopian tubes are ready, and the boy's genitals can also be seen clearly. The baby's brain is at the peak of rapid development at this time. Brain cells proliferate rapidly, and the brain begins to divide into specialized areas for the development of smell, taste, hearing, vision, and touch. The fetus's retina also begins to form. In short, the fetus at this time is basically in adult shape.

The fourth month of pregnancy enters the second trimester. At this time, the fetus's limbs become more and more developed. His fingers can begin to clench with his palms, his toes and soles can also bend, and his eyelids remain tightly closed. They already know how to listen to their parents. At this time, the facial muscles of the fetus begin to be exercised due to the stimulation of the brain nerves. They can frown, squint, and do other movements in the belly. Although their hands and feet are not long enough, their bodies begin to grow faster than their heads, and their necks begin to become more distinct. What’s even more amazing is that at this time the fetus’ respiratory system is gradually improving and they are actually already learning to breathe. The fetus can still hiccup at this time, but we just can't hear it. They may even make a fist, open their mouth, and suck their fingers.