Celebrity Parents 'We Are Growing': The Cutest Photos of Hilary Duff's Baby Bump The Younger star will welcome her third child in 2021 By Andrea Wurzburger Updated on February 24, 2021 09:40 AM Share Tweet Pin Email Trending Videos 01 of 16 Baby Makes Five! Hilary Duff and her husband Matthew Koma announced in October 2020 that they're adding another little one to their family in 2021. Duff and Koma welcomed daughter Banks Violet in 2018 and Duff is also mom to 8-year-old son Luca Cruz from her previous relationship with ex-husband Mike Comrie. "We are growing," Duff shared on Instagram, adding, "Mostly me..." 02 of 16 Chipping In Hilary Duff/Instagram On the night before the 2020 presidential election, Duff revealed that she was "stress eating bout tomorrow," and showed off her growing bump. 03 of 16 Sweater Weather Hilary Duff/Instagram Duff got cozy in this two-piece knit ensemble in November 2020. "For 5 am she pulled it together ☝🏼," Duff wrote on Instagram alongside the mirror selfie. She added, "Think I may be living in this sweater and skirt dream the next few months." 04 of 16 Out and About Gotham/GC Images Then, we got to see the ultra-cute ensemble in action when she wore it out in N.Y.C. that day. 05 of 16 Birthday Bump Hilary Duff/Instagram Before publicly announcing her pregnancy, Duff revealed while sharing a throwback on Instagram that she celebrated a low-key birthday on Sept. 28. "Hubby made my quarantine birthday so sweet and special this year," Duff shared on Instagram. "Missing my friends and family I got to be with .... just reminiscing feeling happy and light... baby and I all dressed up for a celebration 💛♥️ " 06 of 16 Guessing Game Hilary duff/ instagram Duff asked her followers whether they think baby No. 3 is going to be a boy or a girl on her Instagram Stories. What do you think!? 07 of 16 Mad for Plaid Hilary Duff/Instagram The mom-to-be got cozy on the couch and cradled her belly in December 2020. 08 of 16 Mirror, Mirror Hilary Duff. Hilary duff/ instagram Duff shared in December that, while she's so happy to be welcoming a new baby in 2021, she's also missing her pre-pregnancy self. "Would be lying if I told you I didn't miss this body," she captioned a video of herself pre-pregnancy that she posted on her Instagram Story. But that doesn't mean she doesn't appreciate her body now. The star added, "This [body] is working hard and doing pretty cool things for our little/big family and I'm super grateful and excited about that!" 09 of 16 Set Dressing Steve Sands/SplashNews.com Duff is still working away! The Younger star is filming the last season of the series, covering up her bump here with a leather jacket. 10 of 16 Strut Your Stuff Jose Perez/Bauer-Griffin/GC Images Who says maternity clothes can't be chic AF? Duff looked stylish as she rocked leather pants and and a high-collared, puff sleeve top while out and about in N.Y.C. 11 of 16 Family Snuggle Time Hilary Duff/Instagram Duff snuggled with Koma and Banks (Luca was "deep in roblox") in a sweet black-and-white snap in January 2021. 12 of 16 Happy Mama Hilary Duff/Instagram Duff showed off her adorable romper and smiled as she gave her growing bump a rub on Instagram in February 2021. 13 of 16 Workin' Mom Hilary Duff/Instagram Duff shared her outfit of the day on Instagram, giving some insight into her busy, busy schedule in January 2021. She wrote alongside the mirror selfie, "Worked till midnight. Woke up took Banks to gymnastics. Housed an empanada....and a 1/2 OK. ...BACK to work. Repeat. Still hanging on to some fashion 7 months pregnant. love you @zara for these stretch pants. " 14 of 16 Bundled-Up Baby Robert Kamau/GC Images The mom-to-be took care of her fur baby, bundling up to take her pup out for a walk in N.Y.C. in January 2021. 15 of 16 Comfy and Cute Bauer-Griffin/GC Images Duff looked stylish and cozy when she stepped out in N.Y.C. wearing a comfy cardigan, a turtle neck and casual black jeans. 16 of 16 Now You See It, Now You Don't Jose Perez/SplashNews.com Duff camouflaged her bump while filming Younger in Brooklyn, New York, by wearing a loose-fitting light pink coat and ruffled scarf.