August 6, 2024 by Evelina Sterling and Margaret Louisa Stubbs, The Conversation The ovary changes over the menstrual cycle. In this image, 1 is menstruation; 2–3 are the maturing of the follicle; 4 is ovulation; and 5–6 are the growth and deterioration of the corpus luteum. Credit: Shazz/Wikimedia Commons, CC BY-SA“When was your last period?”...