Irregular periods due to oral contraceptives - Online Doctor Chats

Doctor :   hi
User :   hello
Doctor :   how can i help you
Doctor :   age,gender
Doctor :   tell me you concern
User :   female, 21. I've been on birth control aviane for 3 months now...the first month was fine, but the last 2 months i have been having my "period" during the 3rd week, and nothing during the sugar pill week
Doctor :   hello
Doctor :   ok
Doctor :   its not working for you
Doctor :   are you regular taking the pills
User :   yes, every day at the same time
User :   never missed
Doctor :   was there any missed one
Doctor :   ok,its better to change the drug
Doctor :   there are many in the market
User :   what do you recommend?
Doctor :   and also use the condoms also
User :   why would I need to if I am on the pill?
Doctor :   see first you can consult the gyno
Doctor :   get evaluated
Doctor :   hormonal assay and scan
Doctor :   for few days till the pill works