Female leopard gecko not ovulating/laying infertile eggs?

[Cotard]

I'm sorry if this is the wrong thread, I'm not sure if this should've gone in the breeding page.

I've had my leopard gecko for about 1 year and 9 months now, and she's definitely a full grown adult. So far she hasn't shown any signs of ovulating or having infertile eggs, and I haven't put her with another leopard gecko ever. There are no mature male leopard geckos in my room or even house. She's 83g and about 8-9 inches long from nose to tail tip

Is the lack of infertile eggs normal? I've read that female leos lay infertile eggs in a similar way that human females get periods, but I've also read that it's rare and only induced by the presence of male pheromones

 

[acpart]

Most female leopard geckos ovulate and you can see the round pink spheres in the abdomen. Very few leopard geckos in my experience actually develop and lay the eggs if there's no male around. You may have missed the ovulation, which is hard to see and there's no reason to expect eggs. Most leos are done ovulating/laying by this time in the year.

Aliza