I never noticed anything with coffee at all. Mine was the copper- no hormones. It's funny as soon as it was out my whole body changed. I didnt smell any more-deodorant worked for the first time in years. The periods were the worst I was having to double up-tampons and pads at the same time and the what i thought was a bladder problem went away right away too. if u start to noticed different things id get it out. good luck--- oh and my friend is getting hers out soon to- only because shes had to the max that u are suppsoed to have one but she is not getting another one inplace of it.