Insect and Spider Identification: CLOSED: Is this a spider egg?, 2 by Megroll

Megroll wrote:
So I’ve recently caught a spider in hopes to conquer my spider fear!! At first I thought it was a wolf spider, but from further research I’ve concluded its a grass spider. (Still not 100% though)

I have it in a plastic “critter carrier”. Immediately, it started building a web! Over the course of a couple of days, there is a silk ball. The spider was carrying little rocks and putting it on the ball. Perhaps as camouflage?? I would just like to know if this is an egg sack! Thanks’