HILARY Duff has shown off her growing baby bump in a new selfie after announcing her pregnancy.

The update comes one day after the Lizzie McGuire star told fans she was expecting her fourth child with her husband Matthew Koma, 36.

Hilary, 36, shares daughters Banks, five, and Mae, two, with Matthew.

She is also a mom to son Luca, 11, with her ex-husband Mike Comrie, 43.

The actress took to her Instagram Stories on Tuesday to share an update on her pregnancy after keeping the news hidden from fans for months.

The How I Met Your Father star was seen relaxing in bed while wearing just a white tank and underwear.

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The star opted to go braless and show off her growing baby bump, which could clearly be seen beneath the tank.

Hilary had her arms above her head and smiled for the selfie, looking relieved to have finally shared the news with followers.

She wrote: "Been trying to hide this thing for a minute."

While Hilary may have been trying to cover up her pregnancy, eagle-eyed fans have been finding clues over the past few weeks.

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TRYING TO HIDE

The Younger star sparked pregnancy rumors last month after fans noticed she appeared to be hiding her stomach in baggy clothes.

On November 1, Hilary enjoyed a day out shopping with a friend, opting to cover up in loose pants and a very oversized black shirt.

Days later, the television star again opted to conceal her stomach in a loose-fitting outfit.

Fans on X, formerly known as Twitter, were quick to speculate that she was growing her family.

One person asked: "Is Hilary Duff pregnant?" while another wrote: "Yeah just noticed. Looks pregnant."

She then uploaded a full-body shot to raise speculation further, where she showed off her outfit and seemed to strategically place a large brown bag across her stomach.

The Disney Channel alum was also seen in photos captured of her out with her family as she held a folded blanket over her belly, hiding her midsection from cameras.

Last week, she wore a baggy shirt as she attended and hosted the Below 60° Festive Cocktail Reception at The Maybourne Beverly Hills.

The mom of three was seen fully covering her midsection in the top as it fell loosely over her pants.

FINALLY TIME

After weeks of speculation, the So Yesterday singer took to her Instagram feed to announce that she was expecting her fourth child.

In the post, Hilary gave fans a look at her family Christmas card that displayed the star, her husband, and her three young children.

While her kids all had different facial expressions in the snap, Hilary looked shocked as she had her mouth open with her hand placed on her pregnant belly.

"Buckle up Buttercups, we're adding one more to this crazy bunch," the card read as Hilary added, "Surprise Surprise!" to the caption.

Fans flocked to the comments section to congratulate the actress.

Hilary had previously hinted at having another baby in previous interviews, including one with Romper early last year.

"It’s psychotic, I know… I don’t know. I love being a parent with Matt," she opened up when discussing motherhood.

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The actress has yet to reveal when her due date is.