I would never take the morning afte pill again!!! I took it seven month ago, and my period has been messed up ever since! My period was always right on the clock, every 28 days since I was 14 years old.  I'm 44 years old now, and my period changed to 17 to 20 days now. Not only that, I have been battling BV ever since!!! You never know how  big pharma drugs can affect your body!!