Hello KimberlyHubbs,
With your Apple Watch not powering up all of the way, then we'd recommend reviewing the following steps: If your Apple Watch won't charge or it won't turn on - Apple Support
Additionally, if you haven't already, you'll want to Restart your Apple Watch - Apple Support
Force restart your Apple Watch
You should force restart your Apple Watch as a last resort and only if it's not responding.
Don’t force restart your Apple Watch if you're updating watchOS. After you see the Apple logo and progress wheel, leave your watch alone and on its charger until the update finishes.
To force restart your Apple Watch, press and hold both the side button and Digital Crown for at least 10 seconds, then release both buttons when you see the Apple logo.
If issues persist, then you'll want to contact Apple Support for further assistance.
Thanks for using Apple Support Communities!