Hi, I`ll make this short; the whole enclosure is the "nest", if she doesn`t find anywhere suitable underground, she will probably either drop them absolutely anywhere, or withold them.
And just out of interest, it`s quite possible if she is gravid, the eggs could be fertile, though it hasn`t been recoerded in this species (yet), perhaps your monitor will be the first.
I hope everything works out, fertile or not, and she stays healthy, which is the main thing.