yep
She is very deep in the belly and in very warm water to boot, I would not be suprised if she were getting ready to pup.
interesting, i wonder if that is why she was so calm/mellow with the diver.
Look at the first pic. Her pectoral fins are STRAIGHT down. That's not a relaxed posture. She is not comfy in that pic at all. Pregnant sharks need even more food to support the young in utero - if they arent fed well from mommy they eat each other.