Hi I Have Pcos From Last 1 Year ..i Have

hi i have pcos from last 1 year ..i have have irregular periods .i want to know can i have some tablets for regular periods cycle. or how can i over come this problem . doctors have recomended me to loose weight and i have lost almost 10kgs but still i dont have regular periods. i follow healthy diet regime.I really want to over come this problem. kindly suggest. also i had normal menstrual cycle before marriage but now i have this problem . will this effect my pregnancy. whenever i approache doc they tell me to loose weight but have been doing it ..kindly suggest something permanent??