Ah I see. you can see it cause you are logged into your wordpress when you check the page. Any draft page or post is not viewable by anyone else (try going to that page from another browser when you are not logged in).
You need to publish the page but if you don’t want it to appear in the menu bar you can simply hide the page using WordPress’s exclude page function or a similar plugin (there are many plugins that lets you exclude pages so it doesn’t appear in the menu)