Sienna Miller ordered to keep mum over pregnancy

Sienna Miller has been ordered not to publicly discuss her pregnancy amid fears she'll be accused of double-standards over her eight-year privacy battle.

The British star has been at the forefront of a campaign to improve press standards in her native U.K., telling an official probe into the News of the World phone-hacking scandal she was left in a state of "complete anxiety and paranoia" by media intrusion.

Miller, who is expecting her first child with her boyfriend, actor Tom Sturridge, later this year (12), has now opened up about impending motherhood in an interview with Britain's Vogue magazine - but insists she's been ordered not to discuss her private life.

The actress tells the publication, "I'm feeling fine. It's all progressing nicely and it's very exciting. It's nice to start a new decade... I'm in my second trimester, so I'm 'I-can-talk-about-it' pregnant, even though I'm under strict instructions not to say anything as it would completely defeat the point of everything I've tried to achieve in the last eight years."