Sienna Miller is a mum Sienna Miller Mon-09-Jul-12 09:43 Share this Tell Us What You Think WTF 0 LOL 0 FAIL 0 OMG 0 HOT 0 CUTE 0 ] By Jay-Jay FeeneyJude Law’s ex SIENNA MILLER has given birth to her first child with her actor boyfriend Tom Sturridge.No word on what the sex or name is. You May Also Like "Muuuuum!" Adam Levine may of just posted the CUTEST pregnancy pic ever! Adele is pregnant! Alanis Morissette is pregnant Become a fan of The Edge on Facebook and on Twitter .