Last week on Thursday, my husband and I had a condom break after sex. He didn’t come, but it still left us a little worried, so I took a Plan B One Step pill. I have experienced a little nausea that night, but nothing else. Tuesday of last week was when I finished my period, but today, one week later, I started a second period. Because Plan B had a side effect of a change in your period, I know it’s because of that. Anyone else experience a second period with Plan B? What was your experience?