S.M.
I have an IUD. I have had it for over 2 years. I do not have the mirena Iud. Mine is good for ten years. (believe that the mirena is 5 years) I have not had any weight gain with mine. ( i am 33 and it is harder to keep the weight off unless i really watch what i eat) My dr suggested the IUD b/c i would not have the weight gain that you can from the pills and the fact that I conceived my 2nd child on the pill.