In fact, the invitations will be unwritten.
"We just finalized the guest list, and it's about 130 people, mostly family," she said. "As far as friends go, we only invited the ones who've been there for us in the past year and who will continue to be there for us for the next 30. So, no one from 'The Hills' made the cut."
Not sure, but was that a little subtle shade at her former costars?
Audrina continued, "If we were doing a really big wedding, I'd invite them, but we're keeping it intimate."
"I didn't want to rush getting married, because stress is bad for the baby," she said. "I was a little worried about people judging me for it, but Corey wasn't. He said, 'Stop caring what people think. Their opinions don't matter.' Anyway, we've already been together for so long, it's like we're already married. It's just a title at this point — and a ring."
Audrina, who is due to have her baby girl this summer, said she's decorated her little one's nursery in a mermaid theme and added that she's already "super protective" of the unborn child so far.
"Random people have been coming up to me and touching my belly," she said. "It's so weird. This guy at the airport asked if he could take a picture with me and put his hand right on my stomach. I was like, 'Please, don't touch!'"
As for the question on everyone's mind, the answer is no, she will not allow her child to be on reality TV until she's an adult. So, don't expect to see Audrina's mini me on Lauren Conrad's return to TV anytime soon.