YDex had an ultrasound today that should a lot of bundled eggs (or egg follicles) high in her belly that haven't dropped down through her oviducts. Her bloodwork showed a high white blood cell count which says she's fighting an infection so chances are good that the eggs are rotting in her belly.
She needs surgery to be spayed. A $500 surgery.
Dex also has adenovirus (ADV+) and there's no way to know how she will respond to the surgery or if she will ultimately recover.