During the menstrual cycle of a woman with a regular 28-day cycle, ovulation typically occurs on day

In a standard 28-day menstrual cycle, ovulation occurs approximately on day 14, triggered by a surge in Luteinizing Hormone (LH). The follicular phase lasts from day 1 to day 14, and the luteal phase follows from day 14 to day 28. This midpoint timing is important in understanding the fertile window.