emergency contraception
"I took Plan B with 6 hours of having unprotected sex. Long story short, it worked. Long story long...I have had regular periods for as long as I can remember. I've had 26 days on my cycle and am a day late at the most (I keep track with the Period Tracker on my iPhone for over two years). Well my period did not come on day 26...or 27...or 28.. But on day 31 so my period was 4 days late which may not seem crazy but for someone who is always on time it was pretty scary. So I read a lot of reviews where girls get their periods early so I wanted to comfort those who are late after taking Plan B. side effects after 1st pill: fatigue, after second pill 12 hrs later: no side effects."