"Nobody's there with you at 3:00 in the morning when you're just going, 'What am I doing?' " Julia Roberts tells Ellen DeGeneres with a laugh of parenting

By Jen Juneau
May 19, 2017 10:45 AM

Julia Roberts is a mom of three with twins of her own. But when it comes to pal George Clooney‘s two little ones on the way, it’s something he’s going to be figuring out as he goes.

“It’s gonna be so fun — they are a great couple, and they don’t need advice from me or anybody else,” she told Ellen DeGeneres on Friday of the actor and his international human rights lawyer wife Amal, admitting that she has given Clooney some advice but not elaborating on the specifics.

“Also, nobody’s there with you at 3:00 in the morning when you’re just going, ‘What am I doing?’ ” says Roberts, 49, with a laugh. ” ‘Where did they come from, and when are they going?’ ”

Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Babies newsletter.

Ellen DeGeneres
Credit: Michael Rozman/Warner Bros.

RELATED VIDEO: What is George Clooney And Julia Roberts’ Chemistry Like?

The reigning PEOPLE World’s Most Beautiful Woman has been deep in that new-parent stage herself twice: once with twins Phinnaeus “Finn” and Hazel, now 12, and once with son Henry Daniel, 9½.

“You get through it and you figure it out,” she says. “Everybody does, and it’s a trial and error and a whole lot of tears. And it’s amazing. I have three incredible kids, and to think about when they were teeny tiny. It goes so fast.”

Credit: Mike Marsland/WireImage

FROM PEN: Learn The Process Behind Time Selecting The 100 Most Influential People

The Money Monster star shares that she never calls her two older children “the twins” — “they seem like stranger kids” when she hears them referred to in that way.

“They’re very different. I don’t think of them as similar at all, just kind of the same height,” Roberts jokes of Hazel and Finn. “And a very close birthday.”

“How far apart?” DeGeneres asks.

“A minute,” Roberts replies.