The odds are overwhelming that there is life beyond Earth. There are simply too many stars, and it appears that most do have planets (although our own Sun only has one planet with life known, and one more which might have had life once).
Further, the history of the Earth indicates that life appeared almost as soon as the molten planet cooled sufficiently for liquid water to form, roughly 3.5 billion years ago. So, life is not some random miracle, but rather something which is part of the natural direction that matter takes, forming more complex forms as conditions permits. Life will appear where conditions allow it.
The big question is not whether life exists elsewhere, but whether intelligent life exists. For most of Earth's history, life was nothing more than single celled bacteria of various kinds. It wasn't until the invention of sexual reproduction that life began to evolve rapidly, and even then, large brains didn't appear until the most recent few million years, roughly the last tenth of a percent of life's history.
While life in the universe may be fairly common, intelligent life may or may not be.