im sorry that you are still trying to get pregnant. i got pregnant within four weeks of mine coming out. (dr calls me a little fertile myrtle anyway, this is our seventh pregnancy in four years, and no i dont have six kids) :(
i also had mine only a portion of the time that you had yours. compared to your two years, i only had mine for three and a half months maybe that has something to do with it as well. i am also with you when it comes to the libido (forgot to mention it earlier). i wanted nothing to do with my husband in that way starting not long after insertion. a few days after it came out, i couldnt get enough of him. hopefully all you need is a little bit longer. i will by hoping for you.