Thanks for consulting us.
Usually we avoid pelvic examination during periods, but you are facing is irregular heavy bleeding. You MUST have a pelvic examination & an ultrasound
to have a look at your genital tract.
This will also confirm the location of IUCD. Please do a blood pregnancy
test meanwhile to exclude this possibility & then you may discuss with your doctor to give you some birth control pills or progesterone
to stop your bleeding.
Also take some iron & multivitamin
formulation to prevent anemia.
Hope you get well soon.