Growth of embryo in second month

This is the month when there will be some important changes in the growth of embryo. In the first days of second month embryo will be only 1 millimeter, but within the next few weeks the embryo will grow very fast to reach almost more than one and half centimeters. Embryo will become fetus by completing 2 months of pregnancy. By the end of second month embryo would have developed heart, brain, and eyes. In the half of second month, the heart of the embryo will start beating slowly, at the rate of 150 per minute. But it does not mean that the heart will start functioning completely. At this time we can even identify the heart beat through a clinical scan. There will be a thin layer like the eyelid on eyes. It will need more time for it to open and close the eyelids.