Female BP, purchased 2 weeks ago, has gained nearly 500g since. Building eggs?

[statistique]

Hi all, my first post! I purchased an adult female (2016 or 2017) ivory BP 15 days ago with intentions to pair her this fall. I was told by the breeder that she had been paired with a highway male "last season" but didn't produce any eggs, hence why he was parting with her. On that day she weighed 1559g on both breeder scale and mine, so I assumed her lack of eggs was due to borderline weight/condition. Yesterday, 14 days after purchase, she weighed in at a whopping 2026 grams. I double-checked the scale several times to be sure, but she also looks visibly much thicker. During the 14 days, fed eagerly, taking 7 or 8 rats total (approx 60-100g each, all of them smaller than what she could handle). She shed about 9 days after purchase after spending 3-4 days in a cool damp hide, and has been seen hugging the water bowl on occasion, but it seems like the last few days she looks visibly very thick in lower 2/3 (what prompted me to weigh her yesterday). Last night she had a large bowel movement and this morning she still weighs 1980g empty. I have not noticed an ovulation but entirely possible it occurred before I got her, OR on a day in last 2 weeks that I didn't disturb her so wouldn't have seen it, OR it is still forthcoming, OR not. I am aware that retained sperm is possible and her follicle building could have taken longer than the breeder anticipated. I wasn't able to palpate anything today, but I am not experienced at that either. Given this is all the info I have, anyone want to venture a guess what is going on and where we are in the process, given the ~400g of weight gain in 2 weeks? Should I be pairing her up, or prepping the incubator? (This will be first clutch for us if it's coming). Thank you!