Emergency Contraception
"I had sex on March 13th and the condom broke. My partner noticed before orgasming luckily, but I didnt want to take the risk of a precum baby.  I also was in my most fertile time, about to hit ovulation.  I took Plan B on March 14th, 15 hours later. I experienced spotting 3 days after, that quickly went away. I also experienced bloating, mood swings, feeling hot, etc., that lasted for a little over a week. My expected period was March 30th. I got it yesterday, on April 19th . I was *20* days late. A little over 5 weeks after I took the pill. I took 4 pregnancy tests in this time. 

So, to all freaking out like I did, do know that the pill CAN make you late (even 20 days late), and make you experience symptoms similiar to pregnancy symptoms."