I AM BANGLADESHI, my wife is 18.5 years old, BODY WEIGHT 55 Kg and i have a baby 5 months 22 days, i apply "Bredicon" contraceptory pill for my wife FOR FIRST MONTH, but my wife eat only 20 pills out of 28 pills, then she stopped her dosage and she also eat 4 tablets without serial. now 2 months on going she apply no pill, her mence is irregular and 3-4 times in one month, for this situation, now can i change the brand of pill " femicon/minicon???".