Lourd, 29, took to Instagram on December 28 to share a throwback photo from her childhood featuring her as a toddler with Reynolds and her late mom, Carrie Fisher.
In the photo, Fisher and Reynolds are crouching down in front of a young Lourd outside. They both gazing at Lourd with smiles.
Lourd captioned the photo with a series of emojis that seemingly spell out the word “Abadaba,” known as Lourd’s nickname for her grandmother.
Reynolds died at the age of 84 on Dec. 28, 2016, just one day after her daughter (and Lourd’s mother) Fisher died at the age of 60 after suffering a heart attack.
Lourd, who followed in her mother and grandmother’s footsteps as an actress, similarly took to Instagram on Sunday and shared a heartfelt throwback snap of herself as a child next to her smiling mother and a koala.
(L-R) Actress Carrie Fisher, honoree Debbie Reynolds and Billie Lourd pose in the press room at the 21st Annual Screen Actors Guild Awards at The Shrine Auditorium on January 25, 2015 in Los Angeles, California. (Steve Granitz/WireImage)
“People always ask me what stage of grief I’m in,” the 29-year-old captioned the post. “And my answer is never simple. I’m in a different stage of grief in each moment of every day.”
“My grief is a multi course meal with many complicated ingredients,” she shared. “An amuse bouche of bargaining followed by an anger appetizer with a side of depression, acceptance for the entree and of course a little denial for dessert.”
“And that’s how grief should be – all things all at once – actually there is no ‘should’ in grief – grief just is whatever it is for you and that is how it ‘should be,’” Lourd continued. “Ps for anyone wondering why I’m posting this on the 26th it’s the 27th here down unda (aka Tomorrowland) so what better thing to post for my Momby’s Australian death anniversary (4 words I never thought I’d be putting next to each other?!?) than this picture of her and I with a koala!?”
Debbie Reynolds and Billie Lourd. (Ethan Miller)
“Sending my love to anyone out there who needs it,” the star concluded her post. “I miss you Momby.”
The official Instagram account for Fisher’s beloved pooch Gary Fisher also honored her.
“It’s been 5 years and not a day goes by without me thinking of you,” the caption read. “Gone but never forgotten.”
Back in October, Lourd spoke to New Day about the pain she felt in losing both her mother and grandmother.
Carrie Fisher died on Dec. 27, 2016 and her mother (Lourd’s grandmother) Debbie Reynolds died one day later. ( (Photo by Barry King/WireImage))
“It was brutal,” she told the podcast. “It was really, really brutal, and I still hesitate and stutter because it’s really hard for me.”
Lourd, who is now a mom to 15-month-old son Kingston Fisher with fiancé Austen Rydell, told the outlet that she misses her mom “every day.”
Fox News’ Stephanie Nolasco contributed to this report.