Advantages of this method include not having to remember to take it, once removed the women can try and conceive right away, and periods become shorter or lighter. Disadvantages of this method include potential ovarian cysts, irregular spotting, and the device can occasionally come out.
The Ultimate Guide to Safer Sex - another fantastic infographic! Though I am surprised that the IUD is not listed as a birth control option... It is the MOST effective form of birth control besides abstinence. I highly recommend it. Regardless, still great info in this infographic!