Hey guys,
For me: mirena = good, copper IUD = V bad!!
Here's my experiences for you from somebody who has tried everything! (and i'm only 28!)
My periods are normally (without contraceptives) very heavy and last about 9 days.
In 2001 after trying most other methods and not agreeing with any of them, i had a mirena fitted. It was painful to fit as i've not had kids, but apart from that i had no side effects barely at all, it was great!
I did however notice a creeping gain in weight, i was a model at the time and so that was the nail for me, i had it out after 18 months. But the weight rise continued...
3 years after having it out i was rushed to A&E having collapsed, and had my left ovary and tube removed along with an 18cm cyst! This cyst was initially spotted on an ultrasound BEFORE i had mirena, but was left as it wasn't causing problems. BUT as soon as i'd had the operation my weight just fell off....it was the cyst causing the gain not the mirena!
So i then went on the copper IUD, and i have to say i will NEVER ever consider it again! My periods increased to 16-17 days long and were excruciating and heavy! I have had it for 2.5 years now, and they've been hell! Fortunately I have just had it taken out today!
Suffice to say i have gone back on the mirena, i feel that confident that it didn't actually cause me any side effects at all that i have opted for it again! Even if it was that causing the weight gain, i'd rather be fat than in pain and bleeding all the time.
I guess everything is different for different people, but i thought an extra account would be handy!