After the object was removed from his body, both of them used the word "seed" when talking about it. The reason was that the shape of the object resembled a seed, not an egg as Gong Zhaohui just mentioned.
However, Yu Ming knew that it was indeed more correct to use the word "egg" when they talked about that thing, and that was the reason why he fell silent after hearing that word.
Without saying anything, Yu Ming continued to stare at the unconscious Wu Jingguo, and perhaps Gong Zhaohui could figure out the meaning behind that silent gaze.
"Even if I had removed the egg from your body, it would be better if you kept the egg with you, Young Master Yu. After all, you are the mother of that egg, and that's why you shouldn't leave it in the demon realm," Gong Zhaohui spoke again.