Well, if your transvaginal ultrasound is negative that is a great sign. The other tests you mention just add to the confirmation you don't have an ovarian mass (if they were negative). However, there are so many types of cancer and other medical issues too. If you have symptoms and can't find answers you need to keep pursuing the issue. From your post, it is unclear of your situation but if you had no mass seen on your ovary that is a great sign that you probably don't have ovarian cancer. Best wishes.