Do you have to use protection so as not to get pregnant you are 51 and just got off birth control and have not had period for over 1 year?

At 51, if you haven't had a period for over a year, you are likely in menopause and the chances of becoming pregnant are very low. However, it's still possible to conceive until menopause is confirmed, which is typically defined as not having a period for 12 consecutive months. If you want to avoid pregnancy, using protection is still advisable until you are certain you are in menopause. Additionally, consider discussing your situation with a healthcare provider for personalized advice.