Taking to Instagram, the Olympic boxer shared an adorable snap of the family posing outside the Lindo Wing's main entrance.
Reminiscent of the Duke and Duchess of Cambridge's much-loved 'Lindo Walk' photographs, Nicola and Ella beamed as they excited St Mary's Hospital, London.
WATCH: Nicola Adams and Ella Baig reveal the sex of their baby
Opting for a stunning green floral wrap dress, 24-year-old Ella was all smiles as she cosied up to Nicola. The first-time mum completed her gorgeous summer outfit with a pair of white chunky flatform sandals and a chic black leather handbag.
She kept her make-up low-key and styled her platinum locks into a central parting for a fuss-free appearance. Doting partner, Nicola, similarly couldn't contain her excitement. Smiling from ear to ear, the 39-year-old sporting sensation carried their baby son in a smart car seat.
The loved-up couple beamed with joy
Dressed up for the big occasion, Nicola donned an oatmeal tailored linen suit which she teamed with a crisp neutral T-shirt. Striving for comfort, the Olympic champ slipped into a pair of comfy white trainers.
Documenting the milestone moment, Nicola captioned the post: "Can't believe it, it's official me and @ella.baig are parents now. @babyadamsadventures can't wait to get you home #twomums #babyboy".
Nicola's fans went wild in the comment section, with one writing: "And so the adventure begins. Congratulations ladies", whilst another penned: "How amazing does Ella look?? Sending a huge congratulations to you both and welcome to the world little man."
Nicola and Ella welcomed their baby boy on 9 July
A third remarked: "What a beautiful picture! Congratulations", whilst a fourth added: "Amaaaaaazing!! Congratulations to such beautiful parents and enjoy every second."
The joyous photos come after the duo welcomed their first child on Saturday 9 July. Announcing the news on their shared Instagram page, Ella and Nicola released a stunning black & white photo of the baby's feet encircled by the loved-up couple's hands.
They captioned the post: "We are so excited to have welcomed our son into the world on Saturday morning at around 7am. Nothing prepares you for this moment in life but I am so overwhelmed with love and proud of Ella. We can't wait to start this new chapter with baby Adams."
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