Pregnant Olivia Munn Admits She's 'Scared' But 'Excited' To Become A Mom: 'It's Overwhelming'

Olivia Munn's emotions are changing by the minute as she awaits the arrival of her and John Mulaney's first child.

The actress opened up on Today, admitting that the idea of taking care of an infant has her mind racing.

"I feel good. l feel scared. I feel nervous and I’m excited," she shared with Hoda Kotb. "I feel every day ... the feelings are kind of just rotating through."

More frustrating for the X-Men: Apocalypse star, 41, is the fact that she's in unfamiliar territory.

"I came home recently to a bunch of boxes and I'm looking at everything I have to open up and it's overwhelming," explained The Daily Show alum. "I know this is a small thing, but I just don't know how many of each item I need. Like how many blankets does a baby need? Truly, I wish somebody could tell me, how many onesies, how many diapers?"

Munn noted that she's still trying to find the "best rocker" for her little one. "Apparently you need a really good rocker," she said, pointing out that she's unsure if she wants one that rocks or one that glides.

"These [questions] keep me up at night," she quipped. "It's really confusing!"

The former Attack of the Show! cohost added that Mulaney is just as clueless about the situation as she is.

"We talk about the same stuff — which rocker? What type of crib do you put the baby in? What does the baby wear?" she questioned. "Honestly, thank God for Instagram and Facebook and blogs because there’s a lot of moms who put out so much great information, and that’s been a saving grace for me."

Munn joked that she's "really good" at looking after her pup, so if taking care of a baby is "anything like having dogs, then I can do that. But I have a feeling it's going to be much different."

The star previously revealed that embracing her new physique hasn't been easy, but what's helped her "the most is when friends tell me not to compare myself to other pregnant women."

"It can be difficult as your body is changing and you feel like you look different or your body is putting on weight in different places," she expressed. "The consistent image that's portrayed is usually very effortless and fashionable. Mine has been a lot of oversized sweatpants!"