emergency contraception
"When I read all of these reviews, on every page, I couldn't find one that was someone's experience with plan B while on the birth control pill. So I'll leave mine. I missed one pill the week I had intercourse but I had also missed so many pills last month I wanted to be safe. My doctor advised me to continue taking my birth control while taking the plan B. I had no side effects at all. My cycle came 3 days late and it was a bad one. It started with a day of light spotting. It was very heavy compared to most."