After a copper T insertion (or any other contraceptive device), a few periods are heavy and painful. The contraceptive device is a foreign body for the human body and the uterus tries its level best to throw it out so there is more spasmodic pain than in a normal period. Also, because of the local reaction there is more bleeding. I am sure the doctor who inserted the Copper T would have explained that to you. This will get better in a few months, once the body gets more used to the Copper T being inside. Meanwhile, she needs to take a painkiller and anti-prostaglandin drug like mefanimic acid to reduce the pain and bleeding during periods. She also needs to be seen by a gynecologist to see that there is no infection left after the abortion. In case there is an infection, it will require a course of antibiotics and painkillers. In case she does not improve to near normal, or just a little heavy but managable (with medicines) periods, she may need to remove the copper T and use some other method of contraception.