I still had occasional light spotting six to eight months after my ablation. That was three years ago and all that has stopped for me now. I had fibroids and I believe that they were the cause of my bleeding problems.
You can only do what you and your doctor feel is right for you. I had massive bleeding every month for years and did not feel comfortable having a hysterectomy. The ablation stopped most of that, and I'm now past 50 and am probably in menopause now.So glad its over!