emergency contraception
"I had sex on the last day of my period, then I took plan b 11 hours after I had sex. A week after taking the pill I experienced brown discharge which was heavy like a regular period the first 2 days then turned into spotting for the next 3 days. My regular period usually lasts 5 days so I figured the pill just made me have a fake period to trick my body into getting rid of the egg before it got fertilized. I have a period app on my iPhone that tells me when my period is going to come and tells me how many days I have between cycles for me, it's 28 days. So I counted 28 days from my last day of brown discharge and the date my period should have come was the 29th of October and it did!! I hope this helps someone out there!"