I had the contraceptive implant fitted in July 2017 which stopped my periods completely. It needs replacing but due to coronavirus I can't make an appointment to get this done. I was reassured by the nurse who told me that the implant is actually effective for 4 years and so it will still offer protection. Which I was happy enough with. But now my periods have returned every 4 weeks with all the PMS symptoms I used to get. AIBU to think that could mean the implant is no longer effective? And I need to make DH use other forms of protection?