I've had an IUD for 2 years. I've spotted before and after my period before for an extra week at times. Sometimes this makes me feel like I'm always bleeding. :-) But the last few months my cycle has lengthened out from 28 days to 30 days, my period has been shorter, there has been less spotting around my period, and I thought maybe I could live with an IUD. Now this month I'm bleeding on day 14. My strings are where they belong, so that's not the issue. Should I be concerned?