I'm no expert by any means, but honestly she does appear to have that triangular back present in gravids. I know that he said she has never been housed with a male. But even if people say they don't house or put snakes together, accidents do happen. It appears she is in shed in this picture. Its possible she could be gravid. She might slug out if she has never been with a female. But stranger things have happened. There are several reasons for rapid weight gain but with her feeding schedule, i don't see a huge problem. I don't worry about over feeding my females. Males a little more so but not my girls. If I had females that would take large rats, then you better believe I would be feeding them large rats. She could possibly be building follicles too. I know females can and will continue feeding up to ovulation. Maybe she is building now and that is some of her excess weight gain. We have a vanilla female that is still eating but is gaining weight and getting pudgy. We also have a normal het albino that all the sudden gained like 200g and she has only eaten one small rat in the last 3 months. She is exceptionally more pudgy than usual. But it is about her time to start building as she usually lays in August.

My .02 cents....