How to tell if egg sack is fertile

[emerald teh spider]

My daring jumping spider laid a egg sac and I have only had her for a week so idk when the last time she laid was she is a mature female (obviously) but please someone tell me how I can tell if the egg sack is fertile or infertile

 

[cold blood]

if it hatches its fertile

 

[FrDoc]

if it hatches its fertile

I don’t know? I’m starting to feel left behind. Things are getting very technical with the deep science, and I’m having trouble keeping up.

 

[emerald teh spider]

if it hatches its fertile

Really now

 

[cold blood]

Really now

Theres no way to tell, unfertalized eggs look no different.....its a wait and see thing.

 

[Kitara]

if it hatches its fertile

LOL the exact thought that went through my head was "if it opens and a bunch of babies run out it is fertile."