My implant expired three months ago but I haven’t been

Patient: My implant expired three months ago but I haven’t been able to get it out due to work constraints and the fact that my surgery does not do removal. I recently was intimate with my new partner using protection and started what I thought was a period the next day. However four weeks later I am still on a constant heavy period and I am now experiencing cramping pain, which I did not suffer from before. Is this a result of my expired contraceptive implant or something more serious?

Symptoms: Heavy period, abdominal pain

Doctor: