Whats the diffrence in between the symptoms of menestrating and the sypmtoms of being pregnant?

Menses/Pregnancy. Menstruation is monthly vaginal bleeding (monthly period). The symptoms of pregnancy are missed menstrual periods, nausea, and breast tenderness. There are over the counter urine pregnancy tests at the pharmacy. If menstrual periods are irregular, this could be a significant medical problem but often is not serious.