Leopard geckos are sexually mature at 10 months of age and usually lay their first pairs of eggs of the season from January to August. First-time females will sometimes only lay a single egg, but a sure sign that you have done a good job raising your female gecko is seen when two fertile eggs are laid in the box of mosit soil you have been providing. From then on, a clutch will always consist of two eggs unless your female is old or sick. Older females may lay 10-16 eggs per season. A fertile egg feels like a stale marshmellow while an infertile egg looks and feels like a half-filled hotwater bottle.
Eggs are easy to hatch.
In fact, you get to have a powerful job, if you wish, since gecko eggs are temperature sex dependent. This means that the sex of the gecko is not determined at fertilization, but is set during the first two weeks in captivity by the high daytime temperature you expose the eggs to. Now that you have learned a bit of science you can place your new eggs in a plastic container of moist potting soil, Vermiculite or Perlite. Young will emerge on their own in 60-70 days using this method of incubation. Care of the young is the same as for the adults.