What is a common symptom of pregnancy during the first trimester?

During the first trimester of pregnancy, morning sickness is one of the most commonly recognized symptoms. Morning sickness typically includes feelings of nausea and vomiting and can occur at any time of the day. This symptom is attributed to hormonal changes, particularly the increase in human chorionic gonadotropin (hCG) and estrogen levels.

Fatigue is indeed another common symptom, but it often accompanies morning sickness rather than serving as a standalone primary indicator. Weight gain typically does not occur until later in pregnancy as the woman adjusts her diet and lifestyle. Joint pain and increased appetite are less commonly associated with the first trimester; joint pain usually develops later as the body begins to accommodate the growing uterus and changes in posture, while appetite is more often influenced by nausea and other gastrointestinal symptoms in the early stages of pregnancy.

Overall, morning sickness stands out as a hallmark symptom specifically linked to the changes occurring in the early weeks of pregnancy.