Antibiotics and BC

Recently I was given amoxicillin to treat an infection and during that time I ended up having my period due to the ineffectiveness of bc while on antibiotics. I was just wondering if anyone knows if I should continue taking the rest of the pack of my pills for the month or start a new one due to the fact that I've already had my period for the month now. I've read the pamphlet but can't seem to find a clear answer. Thanks!☺️