Thanks for the query.
During the usage of intra uterine contraceptive
device some amount of pain and inter-menstrual bleeding
etc. are common.
But as they are bothering you very much you can go for removal and shift to some other form of contraception
If you can able to manage with symptomatic treatment like using antispasmodics etc., you can wait for one week. If the pain is severe you can go for emergency appointment.
Meanwhile check for the threads as usual.