Sienna Miller Talks Pregnancy with 'Vogue UK'

Sienna Miller is glowing in Stella McCartney on the cover of Vogue UK‘s April 2012 issue.

The 30-year-old actress confirmed her pregnancy with the magazine! Sienna and her rumored fiance, Tom Sturridge, are expecting a baby later this year.

“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,” Sienna told the mag (via Daily Mail).

Sienna also spoke about turning 30. “I didn’t have the freakout, which I thought I would have,” she said. “But maybe it’s because I’m the youngest of all my friends – so that lessened the blow. It’s nice to start a new decade.”

For more from Sienna, visit Vogue.co.uk!

Pictured inside are Sienna and Tom out together in NYC on Tuesday (March 6).