I don't know to much about this and can't tell if she is gravid or not but my advice is to get a laying bin in the cage just in case because even if she is not currently gravid she will need it sometime in the future. Also if you do catch her in the laying I think it is best to delay...
After looking through this article I am starting to think my Randall might be a girl. Randall is sleeping as I am writing this so I am going to take a good second look at his/her back legs tomorrow morning. Randall might be changed to my second choice and more fitting for a girl name Mango soon...
My Cham Randall will eat some of the lettuce I offer and some of the plant leaves in his cage, but has no interest in the blue berries and strawberry peices I try feeding him. No two chameleons are the same I guess.