What is a common presumptive sign of pregnancy experienced by many women?

Amenorrhea, which refers to the absence of menstruation, is a common presumptive sign of pregnancy that many women experience. This is typically one of the first indicators that leads a woman to suspect she may be pregnant. The missed period occurs due to hormonal changes in the body resulting from the establishment of pregnancy, which disrupts the normal menstrual cycle.

In the context of pregnancy signs, presumptive signs are those that are subjective and can be experienced by the woman, often without medical confirmation. Since amenorrhea is a symptom that women can easily notice, it serves as a strong indicator of early pregnancy. Other signs, such as Goodell's sign, Hegar's sign, and Chadwick's sign, are changes noted by healthcare providers during examination and are generally considered more definitive indicators of pregnancy rather than presumptive signs that are based on symptoms experienced directly by the woman.