Yep, scorpions can easily give birth up to four times, or heck, more. I dont keep count, but my bark scorpions, due to their shorter gestation, usually give me 3-4 before croaking. My Parabuthus have yet to croak, but I've got two out of them thus far.
As the others have said, it also depends on if theyre wild caught, captive bred, if they've been hotboxed and powerfed, etc.