The follicular phase, also known as the proliferative phase, is the phase of the estrous cycle  during which follicles in the ovary mature. It ends with ovulation. The follicular phase.  The time between the first day of the period and ovulation. Estrogen rises as an egg prepares to be released. The proliferative phase. After the period, the uterine lining builds back up again. Ovulation. The release of the egg from the ovary, mid-cycle. follicular phase, or the beginning of the cycle: 1.68–15 IU/L. mid-cycle peak, around the middle of the cycle: 21.9–56.6 IU/L. luteal phase, which is the end of the cycle: 0.61–16.3 IU/L.

Is the follicular study helpful?

Follicular study and monitoring are done to study ovarian follicles that are used to identify ovulation of egg. It is an important step in the process of planning a baby, as ovulation is the time which maximizes the chances of conception. Ovulation can best be understood through follicular monitoring.