Could The Delayed Periods Be Due To Copper T?

Hi doctor.. I have a 7 months old year baby. I had regular periods for two months after my 4th month of delivery. However last month just 2 days before period i had put copper t. after two days i got my regular periods. But this month it now 32nd day. I usually get periods after 28 date. I need advise.

I had taken trapic mf after putting copper t for prevent bleeding. Can this delay is bcos of the medicine or bcos of copper T. I had an intercourse with my husband on 9th and 11th days after my last months period.

Please help.