Sore nipples when touched are not a sign of pregnancy because they can be caused by small cuts on the nipples, which can lead to sore nipples when touched. In addition, it can also be a mastitis attack, which can also be manifested as nipple pain when touched, and some patients may be caused by breast enlargement. Therefore, it is necessary to diagnose the exact cause of nipple pain and to carefully examine whether it is due to the above mentioned factors. Pregnancy is a complex physiological process and the signs and symptoms of early pregnancy may not be directly related to sore nipples.