ovulating

I read somewhere online that female leopard geckos may never ovulate or lay eggs if they've never had a male around in their life. I'm not sure if that is true, but if it is, I'm curious if there is a way to encourage my female to ovulate.

Hi! Is my female gravid? She was paired July 29th and Aug 1st. At first I thought she was ovulating now these “spots” are getting larger. I’m new to breeding so please bear with me! thank you! -Zoe