birth control
"I have had mirena for 2 weeks now.  I am 18 years old and don't have any children.  The insertion was very painful for me.  I had cramps for at least 4 hours afterwards once the medicine kicked in.  I have had minor cramps ever since the insertion, but not bad.  I've spotted a little everyday.  I wake up and feel like I'm going to vomit in the mornings, but after I am up and eat, it goes away.  I've actually lost my appetite and lost weight just in the 2 weeks of having it.  So far I love it! Hopefully I don't have any of the side effects like acne.  I recommend this to anyone!"