Actress Sienna Miller has posted the first photos of her newborn, giving fans a small but intimate look at life at home with fiancé Oli Green and their children. In an Instagram carousel, the 44-year-old included hospital-room images of the couple holding their baby, while keeping the child’s face out of view. The post also offered a wider snapshot of daily family life. According to People, Miller captioned the update with one word: "Adulting." The actress is now a mother of three, balancing a teenager, a toddler and a newborn.
Sienna Miller Shares Hospital Snaps with Oli Green
The new images showed Miller and Green cuddling their baby shortly after birth, marking the first public glimpse of their newest child. The couple have kept many details private, including the baby’s name and sex. The actress shares two children with Green, and she is also mother to 13-year-old daughter Marlowe with ex Tom Sturridge. The family update quickly drew attention because Miller had only recently confirmed that she had welcomed another baby, making the Instagram post her first visual update since the birth.
Sienna Miller Confirmed Baby News in May
Miller first spoke publicly about the birth during an interview earlier this year. "It's happened. I have a tiny baby next door," Miller told E! News. She also gave a candid snapshot of early motherhood, adding, "It feels like stringing sentences together is a bit challenging." At the time, she said she was running on little sleep and fully absorbed in newborn life. That brief update confirmed that she and Green had expanded their family again, though she still chose not to share identifying details about the baby.
The Actress Opens Up About Parenting Three Children
Life with three children has already brought some hectic moments. During an appearance on The Tonight Show Starring Jimmy Fallon, Miller said the biggest challenge was not her teenage daughter but traveling with her younger children. She described a recent transatlantic flight with a toddler and a newborn as an "absolute disaster," explaining that the toddler had become the hardest to juggle. The comment added a dose of honesty to her latest family update, showing that the glamorous parts of celebrity life often sit alongside the same parenting chaos many families face.
Sienna Miller Says Motherhood Feels Different in Her 40s
Miller has also spoken about how motherhood has changed with age. As reported by People, she said having children in her 40s feels more grounded than it did earlier in life. She compared becoming a mother at 29 with having babies at 42 and 44, saying this stage feels calmer and more settled. Miller has framed that shift as part of knowing herself better and caring less about outside judgment. Her latest post fits that mood: private, warm and centered on family rather than spectacle.