Hi Jen,
I hope all is well with you. A couple of questions, how is she acting? Does she appear axious? Is she pacing (lack of a better term, sorry)? The reason I ask is, she should be settling into her nest by now.
After the pre-lay shed, I replace the entire cage bedding with slightly damp (nearly dry) sphagnum moss. she female will mold and shape her nest over the next few weeks and settle into it well before she lays. As the other posters stated, I would want the conditions to be dark and comfortable for her. I wouldn't be pulling my hair out yet, but I would be making every effort to assure that she is comfortable and away from prying eyes. By replacing the typical bedding with long grain spagnum, I feel that you cover several important bases at once. You will allow her to nest in a proven nesting substrate. The moss adds humidity to the air and it provides visual barriers. I know many folks don't find it necessary, but I still use the sphagnum technique. Females tend to recognize it and if given in a large enough quantity will typically nest and lay without much stress. Good luck.
Will