Copper
"Hi I am 20 and just had the copper coil fitted a week ago. When it was inserted as I have had no children it was slightly uncomfortable however i was unaware you should take pain killers before the procedure so now I know! But it was not major had a couple of twinges for about 4 days and brownish discharge but after that everything went back to normal.  I still feel slight period cramps here and there especially when I'm in need of a bowel movement! (TMI) overall so far I think its going well"