Reptile & Amphibian Forums

I've got a question regarding Leopard Geckos and them laying eggs. I started off as a snake person at first, but decided I needed something different so I went with a pair of Leopard Geckos (1.1). They're both mature and breed which is expected. The female lays 2 eggs every 3 to 4 weeks or so. My question is this: In people's experience, what percentage of the eggs are fertile? Every other? Every third? Because I can't really tell the difference I just put them all in vermiculite and put them in the incubator, I figure it can't hurt and that the worst would be the unfertile eggs don't hatch. Any thoughts or opinions would be appreciated.
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1.0 Anery Columbian Redtail Boa
1.0 Striped Irian Jaya Carpet Python
0.1 Gray Banded Kingsnake
1.1 Ball Python
1.0 Sunglow Striped Corn
1.1 Leopard Gecko (Male-Albino, Female-Reduced Pattern)
Various Fish

Usually the females first couple of clutches are unfertile, but it never hurts to incubate them anyways. Good luck.