emergency contraception
"My period was always a little weird. It usually would skip a month, I'd have it the next month, but it usually only lasted a few days. I took the pill early May within hours of my boyfriend's condom breaking. I got my period a few days later and it was early. About a week after it stopped it started again around my normal time. I didn't think any thing of it but I've now had four periods within a month."