Which Part Of The Menstrual Cycle Does Not Occur If Implantation Occurs?

Which Part Of The Menstrual Cycle Does Not Occur If Implantation Occurs? If implantation does not occur, estrogen and progesterone levels decline and the lining of the uterus, called the endometrial lining, begins to be shed. This then leads to menstruation. The luteal phase ends when menstruation begins. That marks Day 1 of your next