How do I reconnect my Apple Watch Series 3 to my iPhone I had already turned it on and off again and still not connecting?

Hi kaileigh83,

If you are having trouble pairing your Apple Watch, you can follow If you can't pair an Apple Watch with your iPhone. This resource includes steps for:

1. Make sure that Apple Watch isn’t already paired
2. If you have its paired iPhone, unpair your Apple Watch
3. If you don’t have its paired iPhone, erase your Apple Watch 
4. If you don’t know the passcode, reset your Apple Watch
5. If the pairing process stalls

Another resource you can use includes If your Apple Watch isn't connected or paired with your iPhone.

Take care.