Phases of Endometrial cycle

Menstrual Phase

It involves the shedding of the endometrium, resulting in menstrual bleeding. 

Proliferative Phase

Following menstruation, the endometrium begins to rebuild and thicken under the influence of estrogen, preparing it for implantation. 

Secretory Phase

After ovulation, the endometrium undergoes further changes, becoming receptive to implantation under the influence of progesterone.