Hello. I'm A Well, 56 Year Old Female That Just

Hello. I'm a well, 56 year old female that just began HRT about a year ago. I'm taking Estradiol (1MG), and Medroxyprogesterone (2.5 MG). I still have all by body parts, no hysterectomy or any other surgery. I'm concerned that I can get cancer. My question is how long do you recommend that I stay on these meds? My symptoms are all better now and I'm feeling fine. Thanks.