Simon Cowell is planning a ''special holiday proposal''.

The music mogul will reportedly ask pregnant girlfriend Lauren Silverman to be his wife during his annual festive break and has even splashed out on a ring.

A source told People: ''Simon has an engagement ring, but is being secretive about the proposal.

''Simon is flying to the Caribbean for the Christmas holiday. Lauren will join him for parts of the holiday trip. Simon could be planning a special holiday proposal. It seems he will definitely propose.''

Simon is said to be excited about becoming a father for the first time next year, and is looking forward to Lauren's baby shower.

The source added: ''He is beyond excited about his son He loves feeling the baby kicking and acts very proud that he will be a father.

''Lauren's friends are planning a New York city baby shower that Simon will attend.''

A spokesperson for the 'X Factor' boss refused to confirm his engagement plans.

They said only: ''The matters are private and there will be no comment on it.''