Haha, technically, your female isn't pregnant because she doesn't have any babies in her. She's "eggy." That just means she's carrying unripe eggs. She'll periodically drop them and eat them or absorb them so being eggy isn't a problem.
Now telling a sick bloated female from a healthy eggy female . . . that's a lot harder to do. Basically, if your female looks fat and bloated but is eating, pooping, and acting normally, she is most likely eggy. If she looks fat and bloated and her behavior has changed - doesn't eat, poop, is lethargic or droopy - then she is probably bloated and sick.