12 weeks of pregnancy is an important milestone in the formation process and is the appropriate stage to perform basic tests to determine whether or not there are abnormalities in the fetus as well as the health status of the mother. There are 20 tests that every mother needs to do when the baby is 12 weeks old.

12-week-old fetus is an important milestone, when the mother is about to enter the first trimester, there are certain changes in the mother and baby's body. Surely the mother is very curious to know how a 12-week-old fetus develops? Let's find out in the article below!