Which of the following are probable signs of pregnancy?

• A. Elevated blood pressure and fatigue
• B. Chadwick sign and abdominal enlargement
• C. Light bleeding and nausea
• D. Frequent urination and dark red blood

Answer: (B)

Probable signs of pregnancy are those physical changes in a woman that can be observed by a healthcare provider and suggest the presence of a developing fetus, but are not definitive proof of pregnancy. Chadwick sign, which refers to the bluish discoloration of the cervix, vagina, and labia due to increased blood flow, is a recognized probable sign. Abdominal enlargement can occur as the uterus expands to accommodate the growing fetus, making it another indicator of pregnancy that can be observed during a physical examination.

The combination of these two signs provides healthcare providers with strong evidence to suggest that a woman is pregnant, as they indicate physiological changes consistent with pregnancy. In contrast, other options describe symptoms or signs that are not classified as probable signs or do not specifically indicate pregnancy clearly. Hence, the presence of Chadwick sign and abdominal enlargement makes the selection of this answer the most appropriate response in the context of probable signs of pregnancy.