Suggest Remedy For Delayed Periods

hi, i m 22 years old i had diagonsed with fibriods in breast in jan 2010 & had a problem of irregular menses, so dr has given me a birth control pill to regular my menses. i had taken
the pills for 1 year up to jan 2011.in feb i had menses on 4th feb for 3 days, but since then i not had menses.so pls tell me whther i have to start again the pills or wat to do. pls help me out.