That snake almost looks light enough to be a fire and I haven't seen enough mochas to know one but my gut would say that it's probably just a light normal considering the place you got it from. Most definitely isn't a lesser or a woma anything because you'd be looking at a much brighter snake with a radically different pattern.
As for if it's gravid or not, I'm not seeing any bumps that would indicate that there are any eggs in there but if it is indeed glowing, you could have a female in ovulation but... my gut honestly leads me to agree with Andybill and say this snake is just husky.
If you want to sex it, definitely go for probing because adults are near impossible to pop (or maybe that's just me).