Hilary Duff has been having bizarre pregnancy dreams - including one strange vision which featured "Cheech And Chong" working as her dentists.

The singer-and-actress is expecting her first child with husband MIKE COMRIE and as the pregnancy develops her night-time imagination is creating some odd scenarios, including one where the perennial movie stoners fixed her teeth.

She wrote on her twitter page: "Pregnancy dreams are crazy! Last night i fired my dentist and hired cheech&chong to do all my dentist work! WHAT? That sounds terrifying! (sic)"

Hilary has a lot of free time on her hands now she is working less in preparation for the baby and has taken up painting as a new hobby.

The 23-year-old star - who celebrated her one-year wedding anniversary with Mike last month - added in another tweet: "Taking up a new hobby! First painting lesson today!it's a work in progress. (sic)"