need help with Singapore blue egg sac?!?

[Hellbender]

Hi all,
It's been awhile since I've posted but I bought a singapore blue from the pomona reptile expo about 3 years ago and when I was re-housing her I noticed she had an egg sac in her silk burrow! Imagine my surprise since she has never been around a male before! I got her as a sling about 1" long. So my question is: these eggs can't be fertile right? Or can they? If they are fertile, what do I do now? Thanks!
P.S. She was so mad at me! I've never seen her so angry when I moved her!

 

[viper69]

Phantom sac

 

[Smotzer]

Phantom sac, you can pull it out

 

[Hellbender]

thank you for the replies! I read a little about phantom sacs, is there any benefit to keeping it in there? will she eat it to gain some nutrition back? Keep in mind I'm not sure how many days its been in there as it was in a part of her silk burrow that was difficult to see into. Thank you!