Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. The possible causes of your problem are : -Sometimes during early pregnancy also milk production may start and abortion can lead to accumulation of milk. For which you need to take milk suppressants like cabergoline or pyridoxine. -Increase of serum prolactin levels in body can lead to milk production and can alter The menstrual cycles also. So, please consult your gynecologist get examined and undergo serum prolactin level estimation with this the possible cause of your problem can be identified and treatment can be taken accordingly. Wearing tight well fitted support to the breast can decrease the secretion of milk and also the pain. Hope I have answered your query. Let me know if I can assist you further.