After what month does a baby start moving in a mother stomach? What are the causes of fetus not growing at the normal rate?
Pregnancy Fetus Growth
Up to the age of three gestational months, the fetus is small, and organogenesis (i.e. development of various organs) takes place. Up to this gestational age, the various parts of the body are forming and the fetus is relatively smaller in size.
After three months, the fetus gradually increases in size and most of the organs are fully developed. After the age of five months however, as the limbs of the fetus increase in length and size, the mother starts experiencing the fetal movements in the abdomen.
The fetus also sleeps, so there is a possibility that you may not experience the movements all the time.