Has she been seeming to look for a place to dig? Eating any less than usual (on her own not you cutting back)? Usually they look for a spot and will pace around the cage, going to the bottom to look for a spot. My female did not look for a spot and I had to place her in a laying bin. Dig a hole in the play sand, make sure a tunnel can be held well and won't collapse. Go ahead and leave that hole no need to cover it up once she investigates it because that'll only be messing with the laying site. My Cham layed in the hole I started for her, it was good because that meant less digging for her. She may or may not use your hole. Look up signs of egg binding and keep a good eye on her, mist her cage and if you can Jann recommended me to get some liquid calcium asap and start giving that to her. I got a flavored one and my Cham loves it so it made it easy to give her. You may want to get some, there are several online places. Also, if she becomes weak doesn't move around a lot or is lethargic... get her to the vet. She may or may not be egg bound yet but if she hasn't been looking for a spot and is still alert and strong seeming that might be a good sign, my girl started to show a really lumpy look underneath early on and didn't lay for some time after that. Best of luck, just keep reaching out and researching everything you can about the egg laying process.
