Pattimus, If you don't find the eggs right away they will be dimpled to some extent. Moisture will quickly swell them up to firmness. I have found that any eggs that get laid out in the open are infertile. I provide a Tupperware type egg laying box full of wet sphagnum moss with a door cut in the side rather than the top to retain humidity. Each female lays plenty of eggs through the season so don't worry if the first ones don't work out. The first set of eggs laid by a female are often infertile and after that they are good.