Evan Rachel Wood and Jamie Bell are expecting their first child.

The True Blood actress - who tied the knot with Billy Elliot actor in October 2012 - denied she was pregnant just two months ago, but Evan has admitted she didn't know she was expecting at the time.

"Remember when i said, 'No baby on the way here' Well, I didnt know there actually was... Thanks for all your warm wishes. We are very happy. I'm gonna be a mama! Song of the day ''Sweet child of mine'' #gunsandroses (sic)," she wrote on Twitter.

Evan, 25, and Jamie, 26, started dating after meeting on the set of Green Day's video "Wake Me Up When September Ends" in 2005 before splitting in 2006 and then reconciling in the summer of 2011.

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