Aerta replied to Jammy first. "Yes, it is better to wait. There are ways of knowing ahead of the hatching, but those involve magic and I don't want to disturb Larek and your daughter." 

She turned to Danae. "Well, for one thing, Auryn came out blue and very large for a hatchling. That seems to be the result of magic. The other issue is what precautions should my son and your daughter take when raising a human child?"