Irregular bleeding even after period.

I am taking pills(femilon) properly, as you have prescribed. And I am also having a regular period cycle but after 10 to 12 days from the ending day of the period now I am facing irregular bleeding. Sometimes I have also seen blood after urine. Sometimes in my underwear. But this is not happening continuously. For a proper diagnosis I want to provide you a information that I am also meting with my husband regularly.I am not feeling any ache in my stomach, though I am feeling some pain in my legs and waist but its not like the pain what I feel before the period. Before this month I was using Novelon as per your prescription. Right now I am in Bangalore and I have to stay here for another 2 months please tell me what to do, It is urgent.