"They are incredibly happy," a source told the magazine. "They're very excited to welcome a new member into their family."
Wilde and Sudeikis have been together since 2011 and were engaged in January. The 29-year-old actress talked with Marie Claire earlier this year about wanting to start a family with her 38-year-old fiancé.
"He's so good with kids," she said. "I'm open-minded about how many, but three is like a little party."
The couple is currently planning their wedding and looking forward to their future together.
"I like having a real partner. It's the model I grew up with," she told InStyle back in July. "It's part of why I was able to take so many chances in my life, because I felt like someone was watching my back. I could never imagine life without someone I respect, someone who offers me infinite possibilities."
Although Wilde admits she was the one who made the moves on Sudeikis, she offered some advice to women her age who are thinking of settling, telling them not to go "husband hunting."
The actress recently moved to New York to be with Sudeikis, and she is currently working on numerous projects. Sudeikis left Saturday Night Live at the end of the show's last season.
Wilde has been out in recent weeks sporting some questionable wardrobe choices, which may be a sign of a growing baby bump. Although her style could just reflect a lapse in fashion sense, that seems unlikely for Wilde.
Whatever it is, Wilde is sure to be an adorable pregnant lady. Congrats to the couple!
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