Thanks girls. I spoke to my sister who has it in and she said she did put on weight with it and had irregular bleeding, but that didn't worry her too much. After reading a bit more about it though I think I will just go back on the pill - I don't want to run the risk that I will experience any or all of the side effects and have to get the thing taken out again, so I will stick to what I know! Besides, DH is talking about getting the snip soon...will see about that.