not bruising, looks like you have a gravid female, is she in with a male? if so they may be fertilized eggs.

Even if the eggs are not fertilized,it is very important to try and keep her well fed. she may not eat as much while she has the eggs, but as soon as she lays them she will be one hungry gecko. she will have most likely lost alot of weight while carrying these egs Crickets are good, and if you want to give her a little bit more to gain her wait back mealworms, superworms, wax worms, butterworms... these are all good "weight gain" bugs, just be careful not to let the worms burrow or anything, they could turn into potentially harmful to your leo

All the best

Jamie