Welcome to HCM.
You are definitely not pregnant. As you are 53 years old and are not having periods for 2 years you are in menopause
levels can be higher in menopause with a range of 10 - 15 mIU/ml. Other hormone levels may also get altered like FSH. Your doctor is right to look for cysts as they are common after menopause. Otherwise nothing to worry about. Take care. Thanks.