birth control
"I have had my rod in for almost two years now and I got my period the first two months and nothing since that and it has been great not having to worry about getting pregnant and not getting my period every month. Although last month out of no where  I started bleeding lightly for a few days and I went to gp and he said its a 25% chance that woman that have the rod wouldn't get their period , he wasn't much help on my situation and told me to see how it goes the next couple of months. Since then I have had some really bad mood swings and period pain but no period. I'll wake up with really bad cramps or lower back pain and I feel I'm emotionally weak sometimes and cry for literally nothing, its taken its toll I think I'll take it out soon!"