Pre-menstrual chest pain and early pregnancy chest pain can be identified by the time of appearance, pre-menstrual chest pain appeared a few days before the onset of menstruation, while early pregnancy chest pain generally appeared late. Regular menstruation can be identified by the time of appearance, such as breast swelling and pain appeared before the onset of menstruation, usually premenstrual syndrome; while early pregnancy breast swelling and pain appeared later, usually appeared after the delay of menstruation; such as menstrual cycle irregularity, can be through the early pregnancy test test to detect whether the pregnancy. In addition to early pregnancy reactions such as menopause, nausea and vomiting, drowsiness and acidity, breast swelling and pain during early pregnancy can be realized and gradually increase in size, areola coloring deepens, if you suspect that early pregnancy, you can carry out early pregnancy test on your own or go to the hospital for examination.