The Luteal or Secretory Phase
After ovulation, the luteal phase begins. During this phase, the follicle that released the egg forms a structure called the corpus luteum, which produces progesterone. This hormone is responsible for triggering several changes in the body. One of these changes is the thickening of the endometrium, the lining of the uterus, in preparation for the potential implantation of an embryo. Additionally, a woman’s body temperature tends to rise during this phase. Many women track this increase in body temperature as a means of predicting ovulation.
Changes in Hormones during the Luteal Phase
When it comes to the luteal phase of the menstrual cycle, there are significant changes in the hormones that affect the body. Unlike the proliferative phase and ovulation, where the cervical mucous becomes watery and creates a favorable environment for sperm, the luteal phase takes a different approach.
During the luteal phase, the fertile window has already closed, and the focus shifts away from facilitating sperm entry. Instead, the cervical mucous undergoes a transformation and becomes thicker. This thickening serves a crucial purpose of preventing any bacteria from entering the uterus.
By thickening the cervical mucous, the body creates a barrier that acts as a defense mechanism. It effectively blocks the passage of bacteria and other potentially harmful substances, safeguarding the uterus from any infections or complications.
So, while the cervical mucous in the luteal phase may not be as hospitable to sperm as it was during ovulation, it plays a vital role in maintaining the overall reproductive health and well-being of a woman.