Gravid conda questions

Hey y'all, I've been working on breeding a few hybrids this year from my female green to my male yellow, a few weeks back I fed my female( keep in mind I've been pairing since mid September) well I fed my female and saw the lump which was weird because it was a jumbo rat that doesn't normally put a very big bump in her figure,well about 2 days go by and she still has s small lump and Annie's digest slow so I sloughed it to that, but the next day she was freaking massive like the " like she ate a football" thing everyone says, like it was crazy noticeable. It's been about 2weeks since she first chunked up and the bulge has definatly gone down but she's still swollen a bit more then usual, definatly not normal, I had her ultrasounded back in mid September and the breeder said she had good follicles hence why I started pairing, all in all the question I have is do you think it was an ovulation or a pre ov swell, I thought it was a pos but it was huge,the hugeness lasted about 2 days though and she started to puff down a little,I'm starting to second guess thinking it was an ovulation because I wasn't looking for a pre ov swell and might have missed it, I'd love your opinion