Do you have access to a competent reptile veterinarian? He or she may be able to tell if the lizard is gravid. Do you know if she was housed with a male beardie? Even if she was not, she might still lay an infertile clutch. Make sure her cage parameters are optimum (heat, light, substrate etc.). Provide adequate calcium and lighting. If she is gravid provide a box of appropriate medium in one corner of her cage and watch for digging or burying herself. (She may dig anyway, of course.) Then watch for eggs. Infertile ones will be yellow. If she lays a fertile clutch and you wish to raise them, there is a lot of information on incubating and raising baby beardies out there. Here, for example, if you run a search. Good luck.
Best,
Michele
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1.1.1 Bearded dragons (All rescues)
1.0 Corn snake (Rescue)
0.1 California King
4.5 Royal (Ball) Pythons (3 rescues)
and assorted mammals (All rescues)