What is implantation? Implantation refers to the process in which the fertilized egg successfully reaches the endometrium of the woman\’s uterus and colonizes after a week-long journey. This process is very critical in human pregnancy. Only when the embryo successfully implants can it continue to develop and grow. Embryo implantation process The process of embryo implantation on the endometrium is a complex process. First, the embryo prepares to pass through the cervix and reach the lining of the uterus by further developing, thinning its cervical portion and eventually becoming elastic enough. Once it reaches the endometrium, the embryo will