'Exciting news!' Ashley Williams takes to Twitter to announce she's expecting second son and debuts bump at event

Ashley Williams took to social media to announce she's expecting her second son and later debuted her baby bump at a Hallmark Channel event.

The 38-year-old actress tweeted on Saturday that she and husband Neal Dodson who have a two-year-old son Gus were going to welcome a new addition.

'Exciting news! Gus asked for a pony but he's getting a baby brother instead. Smaller poops. #babydodsonsequel #comingspring2017,' Ashley tweeted to her nearly 19,000 followers on Twitter.

Baby bow: Ashley Williams had her baby bump wrapped with a bow on Saturday at a Hallmark event in Pasadena, California

Ashley later debuted her baby bump on Saturday at the Hallmark Channel and Hallmark Movies and Mysteries Winter 2017 TCA Press Tour event in Pasadena, California.

She was joined at the event by her actress sister Kimberly Williams-Paisley, 45, who is married to country star Brad Paisley.

Ashley let her Twitter followers know before heading to the event.

'I’m gonna go strut the red carpet with my sist tonight at the #hallmarktcas! Check out my rockin bump! It’s… it’s rockin. @Kimwilliamspais,' she tweeted.

Pregnancy announcement: The 38-year-old actress earlier announced she was pregnant on social media

Exciting news: Ashley tweeted that she's expecting another son

Rockin bump: The How I Met Your Mother star also tweeted that she was going to rock her bump on the red carpet

Kim shared photos of her and pregnant Ashley together on the red carpet.

Ashley wore a lacy red knee-length dress with a red sash wrapped tied in a cute bow above her baby bump.

Kim opted for a sleeveless blue dress and cradled her sister's belly at the event.

Sisters who act: Kimberly Williams-Paisley joined her little sister at the event

Tender moment: Ashley beamed as her sister Kimberly cradled her baby bump

Ashley starred in the Hallmark Channel movies Love On A Limb last year and October Kiss in 2015.

Hallmark announced on Saturday that Kimberly will be starring in the upcoming original series Darrow And Darrow.

Ashley shared her pregnancy news after candidly discussing a miscarriage last September.

Cute couple: Neal Dodson and Ashley are shown in May 2013 in France

The How I Met Your Mother star said she was shopping at a Whole Foods in New York City with her son Gus when she started bleeding eight weeks into her pregnancy.

Ashley in an essay on Medium for the Human Development Project called for more openness on the subject and said she hopes to 'normalize' her miscarriage by publicly addressing it.

''You are not broken. You did nothing wrong. You are strong, you are brave, and there is hope,' she wrote.

Comedy show: Ashley is shown with Jim Gaffigan in a still from The Jim Gaffigan Show

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