Hi, welcome to HCM.
I have reviewed your case and there are two possible explanations.
1. You have had an early termination of pregnancy
and have still not stopped bleeding. This may be due to an incomplete abortion
where a few bits remain inside the uterine cavity
and they need to be removed. For this you will need to undergo an ultrasound
2. Bleeding after insertion of copper t is not unusual and women usually have slight bleeding and the next few periods may be heavy. Since you have continuous heavy bleeding a misplaced copper t is another possibility. For this you must try to feel the thread. If you are able to feel it then it probably is in place.
Another rare possibility of chorionic tumors is there.
All of these can be easily confirmed by an ultrasound examination.
When patients with similar history walk into my practice I usually do a urine pregnancy test as it may come positive in cases with incomplete abortions and get an ultrasound examination done for further evaluation.
Hope this was helpful. Feel free to ask me whenever you need help.
Have a good day.