She looks pretty large for a yearling, but not out of the question large. There was a thread a while ago where hgrub's spider female shed and lost all colour and basically turned axanthic. As far as I know she slowly regained her colour and went back to normal. But what's happened here seems to be the opposite, normal to almost pastel like. This gain in colour as opposed to a loss like in the other thread leads me to believe she's likely gravid.