They could be fertile.
If they are white (with slight pink hue) they are fertile.
If they are lemon drop yellow - infertile.
-----
6.8 L. getula californiae - 11 eggs (Cal. King)
1.1 L. getula nigrita (MBK)
1.0 Pantherophis guttatus guttatus (Corn)
0.1 Pituophis catenifer catenifer (Pacific gopher)
3.3 Elgaria multicarinata multicarinata - 14 eggs (Cal. Alligator Lizard)