Stewart said: "We've done really annoying things like freeze our eggs and stuff. So if we want to, we can."
The couple are in no rush to tie the knot and just have a "loose" plan for their wedding.
"We're both, like, really casual people, and so we did this sweeping, traditional thing where we were like, 'Marry me! You marry me!'," the 33-year-old actress told the 'Not Skinny But Not Fat' podcast.
The actress added: "And then we just never planned a wedding because we were like, 'We kind of did it.' But we'll do it. I think we have a very loose plan, which is appropriate to us."
Before the two get married, Stewart wants to direct a movie 'The Chronology of Water', reports femalefirst.co.uk.
Stewart said: "I'm directing a movie soon, and so I have to do that before we get married. Because we have to send invites out and give people time to get ready for that."
