Possibly Gravid?

This is one of my new Opistophthalmus Boehmi.

Running around its enclosure hissing and rattling away like a champion.

I believe her to be female by the chela, and I'm wondering as she measures in around 2.5 inches long.
And extremely chubby, refusing food atm + aggressive behaviour.

Could she be gravid?

I will attempt to get better pictures in future.

I'm not particularly familiar with this genera, so looking at this picture I couldn't tell you the sex. To be sure you should have a look at the operculum.

In the photo the substrate looks very wet, although it may be because of the camera flash. I believe this species requires dry conditions.

This particular photo makes it look a lot wetter than it is, just caught the corner of the misted section but its practically bone dry now. We shall have to see how things develop with him/her