A: In adolescence, the egg begins to mature, the ovary to the uterus regular ovulation. Will protect the back layer of the uterus gave birth to the endometrial lining of the uterus. Each month, when the eggs mature in the ovaries to prepare, it will start thickening of the endometrium, to prepare for a possible fertilized egg. It will generate new blood vessels, once the implantation of the fertilized egg on it, they provide a lot of blood. Blood vessels around the sponge-like pad is a body responsible for the secretion of nutrients to help the fertilized egg to grow. Fertilized egg turns into an embryo, nine months after the baby was born.
