How do you tell if a six lined racerunner is going to lay eggs?

Question
How do you tell if a six lined racerunner is going to lay eggs?

Answer
Hello Abby,

How old is your racerunner?
Do you have any pictures of her?
Usually, you can tell just by looking at the belly, you will be able to see the outline of the eggs.  She will probably slow down on her eating, too since the eggs will take up the majority of her belly space.
Was she bred with a male?

Tracie