WHAT DOES FERTILE REPTILE EGGS FOR SALE MEAN?

My veiled chameleon who I've owned for two months has just laid a clutch of eggs, I've read many matters on diverse internet sites, so am really bewildered about gestation times and so on, could they be fertile ? Before paying for a baby panther chameleon, be sure to come across the best panther chameleon breeder offering captively bred baby panth