I take it, you do not have children, which is why a smaller IUD is being offered?

Do you do cardio exercise (or have sex) and drink plentiful fluids (by plentiful I mean one cup after another) before and in the beginning of the cycle? Cardio and sex increase blood flow to the pelvis and in addition sex changes the pain threshold for some people. Fluids are always good - cannot go wrong with fluids. Also, eating easily digestible foods in small portions, frequently - yogurt with berries, salads, etc. These are preventive measures at your disposal. Sitting at work, which is probably what you do if you have an office job, is bad because it restricts blood flow in the pelvic area.