Which of the following is a common sign of pregnancy?

• A. Missed menstrual period for two or more cycles
• B. Frequent urination
• C. Weight gain
• D. Headache

Answer: (A)

Missing a menstrual period for two or more cycles is a common early sign of pregnancy because after conception the body shifts hormones in a way that prevents the uterus from shedding its lining. This hormonal change stops or delays menstruation, so missing periods—especially for consecutive cycles—is a classic clue that pregnancy may be occurring.

Frequent urination can appear during pregnancy due to increased blood flow and kidney workload, but it’s not as universal or specific to pregnancy as a missed period. Weight gain can happen as pregnancy progresses, but it’s not an early or definitive sign. Headaches can occur from hormonal fluctuations as well, but they’re not reliable indicators on their own.