so i got my period december 6 ended December 11 since my period ended i been sexually active with my husband but i have the iud copper since 4 years ago so i never experience this light pink discharge only when i wipe yesterday can it be implantation bleeding??? Have any one experience this light pink discharge while having iud or got pregnant??

It is possibility however it also could be a possibility that your implant has moved have you had any other symptom?