Heather Morris is seen in Los Angeles, California on April 6, 2013 for the first time since she announced she is pregnant. Credit: Splash News

Looks like Heather Morris will be needing a little extra room in her trademark Cheerios outfit on Glee. The actress and former backup dancer for Beyonce was sporting a noticeably rounder belly when she stepped out in L.A. on Saturday, April 6, for the first time since Us Weekly broke the news of her pregnancy.

Dressed comfortably in red sweatpants and a clingy yellow T-shirt, the 26-year-old star debuted her tiny but growing baby bump on a brisk walk with her pet pit bull. She looked healthy and relaxed, with no makeup and her blonde hair pulled back into a messy ponytail.

As Us exclusively revealed last week, Morris -- who plays ditzy cheerleader Brittany S. Pierce on Glee -- is pregnant with her first child with longtime boyfriend Taylor Hubbell, whom she met in high school. "She's a little more than three months along and starting to show," a source told Us of the Scottsdale, Ariz., native. "It was totally unexpected, but they are incredibly happy and excited."

Indeed, the star told Fitness magazine in 2011 that she was eager to start a family with her beau. "I want to marry him so bad," she said. "That's what I really care about. I want to marry Taylor and have kids with him. I love acting, but if it affects my relationship, then I won't continue doing it."

She may get her wish. Though a source told Us the couple have no wedding plans right now, another pal said: "I see it in their future."