A.S.
Hi there, I have experience w/ the copper T or Paraguard and the Mirena. I had the copper T put in after I had my son...(it's supposed to last 10 years) I chose to have it removed about a 1 1/2 years later...when I did I had a couple of abnormal pap smears...which I had to have biopsied, the outcome was good. Nothing...just a fluke. My belief is that the IUD caused some irritation. I had never had an abnormal pap before then, and have not had one since then. I experienced very heavy bleeding with the Copper T and a lot of cramping. I did not have any trouble conceiving.
I decided to have the Mirena put in after having my daughter, my friends were all using it and loving it. So this one last for 5 years and I have already had it in about 3 yrs. The symptoms associated w/it is that when they 1st put it in I had bleeding for about 6-8 weeks...a really long period, but since then my periods have completely tapered off w/ occasional spotting. I still feel cramps when I would normally have a period, but no mess to deal with. I still have a box of tampons from 3 yrs ago sitting in my bathroom. If I had to choose again, I would totally choosed the Mirena. By the way, both my friends conceived w/in a few months of stopping the mirena. Hope this helps!