3. State one situation (other than menopause) when ovulation and menstruation stop in a woman.

Pregnancy is the most common situation when both ovulation and menstruation temporarily stop in a woman. Once conception occurs, hormonal changes—particularly elevated levels of progesterone and human chorionic gonadotropin (hCG)—prevent the ovaries from releasing additional eggs and halt the menstrual cycle. This natural pause continues throughout the pregnancy and typically extends into the breastfeeding period.

The absence of menstruation during pregnancy, known as physiological amenorrhea, is actually one of the earliest signs that conception has occurred. This mechanism ensures that the uterine lining is maintained to support the developing fetus rather than being shed through menstruation. Other situations that can halt these processes include extreme stress, excessive exercise, significant weight loss, certain medications, or underlying health conditions, but pregnancy remains the most natural and common cause.