Looks possibly gravid.
If the telson is dark red/brown then it is an adult which means it might be gravid.
If the Telson is cream colored or whitish then it might be about to molt.
telson is the bulb where the stinger is at in case you don't know.
It could also just be fat.
Check the scorpion link in my sig for a scorpion forum.
If you have anymore questions.