Have you created a custom menu?
Troubleshooting – My custom menu isn’t appearing
Go to the custom menu page in the dashboard Appearance > Menus and in the “theme location” module at upper left select your custom menu from the pulldown and then click “save”.
Custom Menu Troubleshooting – My Pages aren’t appearing
They must be public pages – not private.
Public – The page will be visible to everyone.
Protected – The page is protected with a password you set. Only people who have the password can view a protected page.
Private – Pages are only visible to blog Editors and Administrators. Private pages are not visible in Reader, feeds, or in any search. A page can be private without being password protected.