Sienna Miller, 44, has shared the first photographs of the two children she has with her fiancé, Oli Green, 29. Miller made a quiet announcement in May that she had welcomed her third child, stating, "It's happened. I have a tiny baby next door." On Wednesday, she posted a series of images chronicling their initial weeks as a family, captioned "Adulting."
The images include Miller holding her newborn in the hospital shortly after the birth. The couple has not yet disclosed the baby's sex or name. She also shared a picture of her two-year-old daughter with Green, featuring a close-up of the toddler's curly hair.
Another photograph shows a heavily pregnant Miller resting in bed with her baby bump visible. Shelves in the background are adorned with childhood photos of Green, along with toys and sports memorabilia, suggesting the couple may have stayed at his childhood home before the birth.
Green also shared his perspective on the realities of life with a newborn, posting selfies on Wednesday that highlighted his tired appearance, accompanied by the caption "parenting."
Green is seen in several photos, appearing emotional while holding the baby in the hospital and later pushing the pram near their London residence.
Miller is now a mother of three, with her eldest daughter, Marlowe, 13, from a previous relationship with Tom Sturridge. She announced her third pregnancy in December at the Fashion Awards by revealing her baby bump.
In May, Miller mentioned on "The Tonight Show With Jimmy Fallon" that she was surviving on "very little sleep" and had returned to work just three weeks after giving birth. She described the transition of having another child and a challenging transatlantic flight to the U.S. to promote her action movie "Jack Ryan: Ghost War."
"It feels like stringing sentences together is a bit challenging," Miller told Fallon. "I'm on very little sleep but I'm madly in love with my baby. It's crazy to be talking words and wearing a dress."
When asked which of her children is more demanding, she said the toddler now wins, recounting a difficult experience with both children on a flight. "The toddler now wins hands down. It was an absolute disaster. There's no negotiating. I got to the immigration line and just broke down."
Sienna's sister, Savannah Miller, confirmed the actress's engagement to Oli Green last month. Savannah praised Green's proposal in an interview with Hello!, stating, "We are all so over the moon. It's the happiest news, and it was beautiful, the whole thing. I can't express how happy I am for her."
Rumors of the engagement began the week prior when Miller was seen wearing a new diamond ring on her wedding finger during a trip to Barcelona, just a week after giving birth.
This marks the fourth time Miller has been engaged, though she has never been married. Friends of the couple have noted Green's desire to marry Miller, despite their 15-year age difference, with one friend telling a publication, "Oli and Sienna are so ridiculously in love, they've got a lovely family and have such a giggle together."