This question today is: How can you tell if a female is going to have babies.Well in the invert hobby we just call it being gravid.How can you tell?Well it's simple really.look on the underside near the sixth leg.Look for a yellow sac like thing.This is a brood pouch.Just like kangaroos they have their babies in these pouches.Thats the one and only way to tell if they are gravid.Hope this helps!