E.S.
Please keep in mind that often times when people make comments on online forums, it's to express negative feedback. Much more rare to go online and rave about something! That being said, I did have Mirena for 11 months. I liked it at first, despite the spotting that lasted on & off for the first 4-6 months. Things then were great for a few months, but the spotting returned to the point that I was bleeding nearly every day. Talk about effective birth control! :) My doctor said that it appeared the Mirena was keeping my uterine lining TOO thin, so that's what caused the constant spotting. After having an ultrasound to make sure there was nothing else going on, I opted to have my Mirena swapped for a Paraguard. I've had the Paraguard for about 2 months now and am so much happier. The spotting went away immediately. On Mirena I didn't have a period, which was nice & convenient, and now I do have one again and it's a bit heavier and longer than my pre-IUD days. But I'd rather have one period than the constant spotting all month. The Mirena has different side effects for everybody & some experience none at all. Hopefully that is the case for you! Just be patient and give it some time. Good luck!