When does the luteal phase of the menstrual cycle begin?

The luteal phase of the menstrual cycle begins after ovulation. This phase follows the release of an egg from the ovary, which is the event that marks ovulation. During this time, the ruptured follicle transforms into a structure called the corpus luteum, which produces hormones, primarily progesterone. This hormone plays a crucial role in preparing the uterine lining for a potential implantation of a fertilized egg.

The luteal phase typically lasts about 14 days, leading up to the start of menstruation if pregnancy does not occur. It is essential to understand this timing because it influences various hormonal changes and can impact the overall menstrual cycle. In contrast, the other options do not correctly represent the timing of the luteal phase. The onset of this phase is specifically tied to ovulation, emphasizing its significance in reproductive health.