If they are lively, Id let them go at it, honey. They've done this under birds for years before we all intervened. Their odds are better alone under a reliable hen every day of the week, than in our bator with us. I would absolutely check them in the morning, and if most have made any progress at all, I'd leave them. Remember, patience is a very good thing for the babies. Better to arrive a day late than die from an early assist.
x2. Pokey took forever to hatch, almost a day and a half after pip. Wanted to help him earlier, but he's out and healthy now so I'm glad I didn't.
Speaking of which, he has finally made it out. He's a darker blue one, makes 2 blue like him and 5 self blue babies. Woo hoo, I can sleep now, lol. I'll move him and his buddy in the incubator into the brooder tomorrow, clean as much of the incubator as I can. Then just the calls and mystery goose left to go. Took a quick peek at goose, heart and veins starting to show, yippee!
Pokey isn't the one on the left, but that's what he looks like.