My iwatch will not go to the home screen. I push the button and nothing happens.

Hi

Operation of the Digital Crown can be affected by substances like dust. Should it become stuck or stop operating as expected, it can be cleaned by following the steps here:

Use the Digital Crown on your Apple Watch - Apple Support

If the issue persists after following the recommended procedure, I suggest that you contact Apple Support (mail-in service may be available, if required), make a Genius Bar reservation or visit an Apple Authorised Service Provider with a view to arranging for your watch to be inspected and, if recommended, serviced:

• Contact - Official Apple Support
• https://twitter.com/applesupport
• http://www.apple.com/retail/geniusbar/
• https://locate.apple.com