From “Mean Girl” to loving mom.

Lindsay Lohan has shared photos of her son Luai for the first time — 18 months after his 𝐛𝐢𝐫𝐭𝐡.

The actress, 38, uploaded the images to an Instagram carousel on Friday following a family outing to a zoo.

The first snap showed young Luai — who was 𝐛𝐨𝐫𝐧 in 2023 — being held by his father, Lohan’s husband Bader Shammas.

Lindsay Lohan’s husband Bader Shammas and their son. Instagram/@lindsaylohan

Another shot showed Lohan and Luai holding hands from behind.

Followers were thrilled over the sweet snaps, with one writing: “As a fan since 𝘤𝘩𝘪𝘭𝘥hood, im so happy for the life you have now.”

Lohan and Shammas, also 38, first started dating in 2020, married in 2022 and welcomed their son in July 2023 and have kept him largely out of the spotlight since.

Shortly after her wedding, “The Parent Trap” star — who spent the 2000s in and out of rehab — gushed over married life.

Lindsay Lohan holds hands with her little one. Instagram/@lindsaylohan

Lindsay Lohan and Bader Shammas take their son to the zoo. Instagram/@lindsaylohan

Lindsay Lohan poses for a selfie with her hubby in June. lindsaylohan/Instagram

“[Marriage] is great, it’s amazing,” Lohan said on “The Tonight Show Starring Jimmy Fallon.” “I met my person. You never know if you’re going to find that in life and he’s an amazing man and I love him. We’re a great team.”

And last month, Lohan opened up about the other love of her life, Luai and being a first-time mom.

“For my son, I want to do fun ones,” she told The Post. “If he sees dinosaur wrapping paper, he gets excited. So that’s what’s fun for me — wrapping presents and putting up the tree. And filming every moment of it!”

Gushing over motherhood, Lohan noted: “It’s no longer about you, really.”

“For me, everything is about my 𝘤𝘩𝘪𝘭𝘥 and my family and my household, and making sure that my work is in line with what’s going to work for everyone else,” she added about staying in Dubai for Christmas.

Lindsay Lohan smiles with her husband. Instagram/@lindsaylohan

Lindsay Lohan shares first pics of her son on Instagram. Instagram/@lindsaylohan

“I would like to be settled here, because then I can do everything for the 𝑏𝑎𝑏𝑦.”

And in November, Lohan confessed that there’s one thing she can’t skip out on when it comes to her little one.

“I have this thing,” the star said while on “Today.” “Since my son was 𝐛𝐨𝐫𝐧, I take a picture of him every single morning the second he wakes up. And I can’t miss it, so I need to be on his schedule.”

Pregnant Lindsay Lohan shows 𝑏𝑎𝑏𝑦 bump progress in ‘dream’ beach-themed nursery. lindsaylohan/Instagram

Although Lohan teased that she had no idea what she’d end up doing with all of the shots, she told hosts Hoda Kotb and Jenna Bush Hager that Shammas reminded her she’d have to do the same for their next 𝘤𝘩𝘪𝘭𝘥.

“I’m like, well that’s a whole other story!” Lohan quipped.