But despite the sisters being somewhat close in age, it was a long, bumpy and emotionally trying road to motherhood for Newman, as she previously underwent in vitro fertilization and endured multiple miscarriages, as well as a stillbirth in 2013. She turned to surrogacy for Alma and Mila — and the latter was born 15 weeks early.
“Today marks the first miracle of Hanukkah, Exactly 80 days ago Mila Nico Newman Nattiv was born (709 g, 1 lbs. 9 oz) at 25 weeks and three days gestationally at the Sunrise Children’s Hospital in Las Vegas via our brave surrogate,” Newman captioned a collection of emotional family photos from the hospital, showing baby Mila then and now.
“The dream team of doctors and nurses led by the brilliant Dr. Caren Lipsky saved Mila’s life and made sure she is out of danger while she grows stronger and healthier,” she continued.
Never miss a story — sign up for PEOPLE’s free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
“Mila came home today, ending this stressful, exhausting journey and making us happy parents once again,” she added. “Welcome home baby girl. We cannot wait to watch you flourish and thrive. We would like to deeply thank all our family, friends and especially the Sunrise Children’s Hospital Staff. You were our strength and hope.”
Fellow celebrity parents offered their well wishes in Newman’s comments section, including Kimberly Van Der Beek who wrote, “Congratulations! Mila I am looking forward to some snuggles 💗💗.”
RELATED VIDEO: Vanessa Lachey Breaks Down as She Reveals She Underwent an Emergency Surgery During Premature Birth of Son Phoenix
In her birth announcement for Alma in September 2018, Newman reflected on her and her husband’s harrowing experience toward becoming parents, which included the loss of their daughter via stillbirth in 2013.
“After a year of shock, subsequent years of IVF treatments, and four more miscarriages, we lost hope,” the Little Fires Everywhere actress recalled. “But in life there are also gifts that come to show you the concept of ups and downs.”
“This Tuesday, September 18, 2018, Alma Ness Newman Nattiv arrived (with the help of our extraordinary surrogate who has now become family), as the Kol Nidrei prayer was heard in synagogues around the world,” Newman continued. “An inexplicable happiness overwhelms us, so we have decided to share our incredible miracle that could have only happened through science and love.”
“Shana Tovah, have a beautiful year, and never lose hope,” she added, concluding by giving her followers a glimpse at the inspiration behind her daughter’s middle name: “P.S. Ness = ‘Miracle’ in Hebrew ♥️.”