Your Booking is confirmed, you will receive an email with the meeting details. Fertilization:The egg and sperm cell joining to become one cell.Ejaculation:The ejection of semen (sperm).Embryo:A fertilized egg, starting of two cells till the second month of pregnancy Endometriosis: Endometrium cells, which should normally be in the uterus, are present somewhere else in the body, usually in the abdomen cavity.