Which symptom is typically associated with the first trimester of pregnancy?

Morning sickness and nausea are commonly experienced symptoms during the first trimester of pregnancy. This condition can occur due to the hormonal changes in a woman's body, particularly the increase in human chorionic gonadotropin (hCG) and estrogen. These hormones can lead to gastrointestinal disturbances, resulting in feelings of nausea and the aversion to certain foods or odors, often referred to as morning sickness.

This symptom can manifest at any time of the day, although it is most commonly observed in the morning. It typically begins around the sixth week of gestation and may continue into the second trimester for some women. Understanding this symptom is crucial for expectant mothers, as it can significantly impact their comfort and nutritional intake in the early stages of pregnancy.

The other options do not accurately represent common symptoms of the first trimester. Increased energy levels are more typical in the second trimester, while decreased urination is not usually a characteristic of early pregnancy—many women actually experience increased urination due to hormonal changes and pressure on the bladder. Additionally, an increased appetite often develops later in pregnancy, not typically in the first trimester.