I am on birth control but I missed six pills because I forgot my pills on a trip. So, I restarted another pack of pills. On the sixth day of these new pills, I had sex and the condom broke. Because I had missed so many pills the previous week, I took plan B. My birth control says that it takes seven days on the pill to be protected, and I had only been taking it for six days after missing so many. My period was due in about 8 days but I got it today, I am guessing because the plan B messed up my cycle. After my period is over, should I start a new pack of birth control and throw out the one I am on now or continue my existing pack, taking the placebo pills even though my period will have ended before that point?