07/08/2012 01:11 pm ET Updated Jul 09, 2012

Sienna Miller Reportedly Gives Birth

Sienna Miller, 30, gave birth to her first child with fiance Tom Sturridge, 26, over the weekend in London, Us Weekly reports.

The pair have been dating for more than a year, and announced the pregnancy in January. In February, Miller began sporting a diamond engagement ring.

Details on the baby's gender, name and weight have not yet been reported.

Miller briefly discussed her pregnancy with Vogue U.K. in the magazine's March issue. "I'm in my second trimester, so I'm I-can-talk-about-it pregnant," she said. "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."

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