it can be normal to have irregular bleeding with an iud during the first 3-6 months after insertion. there is nothing you can do on your own to fix this. however if you have not had proper placement confirmed by your doctor then you should do so. you can check for the string yourself as well. sometimes an iud which is out of correct position can cause irregular bleeding.
i got an iud 4 weeks ago and my period hasn't stopped since then. is this still 'normal'? how can i stop it (on my own)? . i currently have limited access to a doctor or ob/gyn so advice to take at home is welcome.