Baby development and picture appreciation at two months of pregnancy During the two months of pregnancy, the baby has completed the transformation from fertilized egg to embryo. At this time, the size of the embryo is only about 1 centimeter, but it seems to be a sparkling little star, emitting a vibrant light. The following describes in detail the development of the baby during the two months of pregnancy from four aspects. 1. The baby’s internal organs have begun to develop. During the two months of pregnancy, the baby’s internal organs