Im Taking Daphne Pills. I Just Gave Birth 4mos Ago

Im taking daphne pills. I just gave birth 4mos ago but didnt have any menstrual periods. So i use the said pill. While taking the pills in the middle of the pack i had my menstrual period. But still i continue to use the same pack. I dont know if i should start using a new pack coz of my period. I just want to know if im taking the pills correctly. Thanks