Suggest Treatment For Irregular Periods

Hi my name is Suma, I am 21yrs old, I am facing irregular periods problem after marriage and I want to get pregnant, so I am suggested by one of the gyenaecologists to take Ovral L and i m taking it since 5months so since that i m getting my regular periods and I Just wanted to check that if I stop taking the pills will I again get the same problem again i want to get pregnant please help me out with this problem...........