Levonorgestrel
"I had the Mirena IUD placed in July of 2007, 6 months after my husband and I had our first baby. My doctor recommended it over the Paraguard. When the doctor was placing it, I was extremely uncomfortable. However, I felt back to normal after two days. There was mild spotting for the first couple of weeks, but that stopped. Then my period stopped. In fact, I haven't seen my period since 2007. I haven't felt any different since I had it placed. The only thing that could be a bother about this is the strings, it feels like fishing line. The doctor said the strings would soften over time and they did within the first year. I love Mirena!"