Let's go back to basics. What is your hot spot temp? Cool end temp? Use a temp gun to measure your temps. Do not go check temps by the feel of your hand: it is not accurate
What brand and type of UVB lighting are you using (T8 or T5)? Is it on top of a mesh lid or inside the tank?
You can pick up a kitten litter box or small plastic container that is large around for her to go in, turn around and dig without being too crowded. If she wants to lay eggs, it has to be comfortable for her. Use play sand as laying substrate. Here is a thread from the bearded dragon website with details on what to do:
https://www.beardeddragon.org/forums...p?f=75&t=96976
FYI, that website has a lot of experienced keepers who are very nice and helpful, if you ever need more help or questions.