Actress Lindsay Lohan has announced that she is pregnant.

The 36-year-old, who married financier Bader Shammas last summer, made the announcement on her Instagram page.

She shared a photo on Tuesday of a baby grow with the words 'coming soon...' emblazoned on it.

The actress rose to prominence as twin sisters Annie and Hallie in the 1998 film The Parent Trap, and went on to star in Mean Girls, Freaky Friday and most recently, the Netflix film Falling For Christmas.