I bought a female Emperor Scorpion. I have heard that they have long gestation periods and are often pregnant when bought. How can I find out if my scorpion is pregnant?
Look at Opisthoma of the scorpion.
See the ventral (meaning belly side) and the dorsal (meaning upper side or back side). On both sides there is a series of carapace, meaning hard shell. The one on the ventral side is called sternite and the one on the dorsal side is called tergite.
There are about 7 carapace joined one after another. They are joined by a whitish membrane called pleural membrane.
The carapaces will be extended a little bit and pleural membrane will be exposed. As such you will see a little bit of white space between each carapaces.
See the below picture -
Look at the exposed whitish pleural membrane.
This is the sure sign that your scorpion is pregnant.