aniston092211_01_X17WM230.jpgJennifer Aniston is putting her acting career on the backburner in the hopes of becoming a mom, according to Daily Mail.

A source close to the 42-year-old actress tells the site Aniston has not booked any movies in the "forseeable future" ... telling her agents "she needs a break."

The source adds:

    "She wants to focus on herself and hopefully becoming a mother. She is thinking of launching her own fashion line which would allow her to spend more time at home."

Various online reports have speculated that the Friends star is already pregnant with beau Justin Theroux's baby.

The actress' rep has yet to issue a comment.