Even as the 36-year-old actress got out of the house for a party for the first time in months, she couldn't stop thinking about her son, Jack, who is just over a year old.
"I feel like I'm not qualified in any way to be a parent," Faris said in an interview Wednesday night at People magazine's "Ones to Watch" party. "But I'm loving it. I think that I'm going through that thing that all new parents feel which is just the guilt. ... Like I feel guilty for being here tonight, not cuddling him in bed."
Faris is playing a mom on her new CBS series, "Mom," alongside Allison Janney. Although it's a comedy, Faris says the show tackles more serious issues than she anticipated.
"We're going to places that I would never have expected us to go. Really, truly it feels like such a daring program," Faris said. "We deal with some heavy, heavy (expletive)!"
Faris has had a busy fall, shooting the series and taking care of Jack as her husband, Chris Pratt, has been out of the country filming the Marvel movie "Guardians of the Galaxy."
"He's coming back next week, though. So, you know, hopefully he'll start to haul the baby around," Faris said.
There's been one benefit to lugging her 35-pound son around the house. "That's a big boy. ... My arms, they've never been so toned," she said, laughing.
Faris most recently lent her voice to the animated "Cloudy With a Chance of Meatballs 2."