birth control
"Had mine put in about 6 weeks ago And love it so far.  I'm 23 with no children but did a lot of research first.  The insertion was painful, even with media to help.  I did try to drive myself home but nearly fainted while driving...so you might want to bring a friend.  Overall though it was not THAT bad.  I spotted non stop for 5 weeks and now have gone 1 full week with no spotting.   Other than the initial placement I have had zero pain."