Pregnant or Chubby?

[FrankieSmith]

Hi,I bought my Syrian Hamster (Bean) a few days ago from pets at home here in the UK. I know its not the best place to buy hamsters and an actual breeder is better but with the pandemic going on there isn't any available around where I live. I got her home and noticed how big she looked compared to other hamsters I know (I live with housemates who all have female Syrian hamsters).

She isn't nesting unusually, and Im not sure if she's been in contact with other hamsters or how they've been feeding her.

Im hoping she's just sporting some hamster rolls under her fur and not babies as a few people who have hamsters have asked if she's pregnant, making me a bit paranoid. I've included some photos and hoping you guys could possibly give me your opinion or advice.