The moment it reaches the uterus, the morula becomes a blastocyst. The blastocyst then burrows to the uterine lining a process called implantation. Undescended testicles. In some males, in the course of fetal development just one or both of those testicles fail to descend from the abdomen in to the https://dralpersismanoglu.com/en/tag/can-a-poor-embryos-become-healthy-babies/