NEED TO KNOW
\nSienna Miller is pregnant, debuting her bump at the 2025 Fashion AwardsThis will be Miller’s third baby, but her second with boyfriend Oli Green She is already mom to a daughter with Green and daughter Marlowe, 13, with ex Tom Sturridge <\/p>\n
Sienna Miller<\/a> is pregnant!\n<\/p>\n The actress, 43, debuted her baby bump at the 2025 Fashion Awards in London, England, at the Royal Albert Hall as she walked the red carpet. Miller could be seen wearing a see-through white dress over a small pair of white shorts. She wore her hair loose and in waves, accessorizing with large earrings.<\/p>\n This is the third baby for Miller, who welcomed a daughter with boyfriend Oli Green at the end of 2023 and is also mom to daughter Marlowe, 13, whom she shares with ex Tom Sturridge.\n<\/p>\n A rep for Miller did not immediately respond to PEOPLE’s request for comment.\n<\/p>\n Never miss a story \u2014 sign up for PEOPLE’s free daily newsletter<\/a> to stay up-to-date on the best of what PEOPLE has to offer\u200b\u200b, from celebrity news to compelling human interest stories. \u00a0\n<\/p>\n Sienna Miller.<\/p>\n Mike Marsland\/WireImage<\/p>\n The actress has been dating\u00a0her 28-year-old boyfriend\u00a0<\/a>since 2022 and has previously opened up about the “pressure” to grow her family after turning 40.\n<\/p>\n In a 2022 interview with\u00a0Elle UK<\/a>, she discussed the topic and revealed that she\u2019d had some of her eggs frozen.\n<\/p>\n “[The] pressure… [about] kids, and should I have more, and why haven\u2019t I, and all of that, which is a really loud noise. Biology is incredibly cruel on women in that decade \u2013 that\u2019s the headline, or it certainly was for me,” she shared.\n<\/p>\n “Then I got to 40 and I froze some eggs. Having been really focused on the need to have another baby, I\u2019m just like, if it happens, it happens. That kind of existential threat has dissipated.”\n<\/p>\n Oli Green and Sienna Miller attending the Fashion Awards 2025 at the Royal Albert Hall, London on December 1, 2025.<\/p>\n Lucy North\/PA Images via Getty<\/p>\n