I had a copper coil inserted last Tuesday and have been spotting since than it’s been eight days and I think my bleeding is istihadha. It will take a few months for my bleeding to settle what are the rulings for sexual intercourse with husband in istihadha?

If the bleeding had no continuity over three days meaning that it came on and off and you could say you were free from bleeding for a period of time then yes it is istihadha and intercourse during that time is allowed