Full record of fetal size changes during pregnancy, latest fetal size comparison table at gestational age
Pregnancy is a process full of expectations and mystery. Once you are diagnosed with pregnancy, you should start paying attention to the changes in gestational age and fetus. The size of the fetus is one of the most important indicators. As the gestational age increases, the size of the fetus continues to grow. The following is a complete record of fetal size changes during pregnancy and the latest gestational fetal size comparison table, allowing you to more easily track and record the fetus. growth.
First trimester (week 1 to 13)
The first trimester of pregnancy is usually divided into the first 3 months, when the fetus is very small and difficult to observe. In the 4th to 5th week, the fetus is only about 1 mm, about the size of a bean. By the 8th week, the size of the fetus increases to about 22 mm, which is equivalent to the size of a grape. At 12 weeks, the fetus is relatively large, about 7.5 centimeters, which is about the size of an orange.
Second trimester (14th to 26th week)
The second trimester is the period of fastest fetal development. In the 14th to 15th week, the length of the fetus can reach about 8 cm, like a pen. By 20 weeks, the fetus has grown to about 16.5 centimeters, weighs about 280 grams, and has reached the size of half a small watermelon. At 26 weeks, the fetus is about 23 centimeters long and weighs about 760 grams, which is equivalent to a medium-sized eggplant.
Third trimester (27th to 40th week)
The third trimester of pregnancy is a critical growth period when the fetus will gain weight and grow rapidly. By 32 weeks, the fetus is about 39 centimeters long and weighs about 1,700 grams, which is equivalent to the size of an adult\’s hand. At 36 weeks, the fetus is about 44 centimeters long, weighs about 2,400 grams, and is about the same size as a large watermelon. At 40 weeks, which is the full term, the fetus is about 50 to 53 centimeters in size and weighs about 3,000 grams, which is equivalent to the size of an oversized watermelon.
Other changes
In addition to fetal size during pregnancy, the fetus will undergo other important changes. For example, at 18 to 20 weeks, the fetus will have a sense of taste and can taste sour and sweet tastes through the amniotic fluid. By 24 weeks, the fetus\’s hearing also begins to develop, and it can hear the mother\’s voice, music and other sounds, and the surrounding sounds can also stimulate its auditory nerve. By 36 weeks, the fetus\’s skin has become smooth and the bronchioles in the lungs have basically developed, making it ready for birth.
In short, the expected date of delivery is an important milestone during pregnancy. With each gestational week, the size and weight of the fetus are constantly changing, and the fetus at each stage of development will show different characteristics. Through daily records, we can better understand the development of the fetus in the mother\’s body, and make the obstetrician\’s examination and pregnancy care more targeted. At the same time, it is also important to pay attention to diet, exercise properly and maintain a good attitude to help the fetus grow healthily.
