Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Some amount of spotting and nipple pain can be seen in premenstrual period also due to hormonal effect. But if there is possibility of pregnancy, then symptoms could be due to implantation bleeding or sometimes signs of miscarriage. In that case, better to go for urine pregnancy test once. If the test gives positive result, consult your gynecologist once get examined and undergo ultrasound, which will help in finding the possible cause of your problem and treatment can be taken accordingly. Hope I have answered your query. Let me know if I can assist you further.