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Hoppen confirms Miller's baby news

Sienna Miller's former stepmother Kelly Hoppen has confirmed the actress is expecting her first child.

The interior designer, who was previously married to Miller's dad Edwin, insists the Factory Girl star is pregnant, but has no plans to wed boyfriend Tom Sturridge, as was widely speculated when the baby reports first broke earlier this month (Jan12).

Hoppen tells London's Evening Standard, "Sienna is definitely not engaged or getting married, and she is pregnant."

The news comes just days after Miller and her sister Savannah resigned as co-creative directors of Twenty8Twelve, the fashion label they founded in 2006.

A statement from the firm, which will now continue as Twenty8Twelve London, states Miller has left "to concentrate on the baby".