That is almost certainly laying behavior. She its looking for a safe spot to lay the eggs. I would get a dark box, with a hole in it, and some most substrate in there as soon as possible. It is possible she could become egg-bound, though normally they will just lay them. But if she's young, especially if its her first clutch, she may spend so long looking for a place that she can't pass them.
I need to clean my gecko tub out today, so I'll snap a pic of how I have mine set up. I'd give them a few more days, if it they still never go into the warm hide you could bump it down a bit, but if the male its in the middle I wouldn't worry much. Has he eaten anything yet?
