Fertile Window

When ovulation occurs, a mature egg is released from a follicle in the ovary. The remaining empty follicle collapses to form a structure called the corpus luteum which secretes estrogen and progesterone; together, these hormones inhibit menstruation and prepare the uterine lining for a fertilized egg to be implanted. The presence or absence of ovulation and the quality of the corpus luteum function may be evaluated in the following ways: by measuring basal body temperature; by performing an endometrial biopsy to judge the quality of your uterine lining; by running lab tests for serum progesterone, by transvaginal ultrasound; or with an ovulation predictor kit. Last modified on: 30 June 2015