In our normal womanly monthly cycle, we rely on two hormones – estrogen and progesterone.
It’s important to know that the menstrual cycle occurs in three phases: follicular, ovulatory and luteal. The first half of the cycle is known as the follicular phase and the second half of the cycle is known as the luteal phase. Midway through the cycle between days 12 and 16 ovulation occurs, known as the ovulatory phase.