My female guinea pig Cubie who I took from a friend who could no longer care for her is getting larger. She was chubby when I first got her at the end of January, but I've noticed a lot of pigs are. Though recently I feel like she's gotten more "pear shaped" which I've read could mean pregnancy. She has a friend now named Sugar and I was told by the animal shelter that she is definitely a girl, without a doubt. She was relinquished by an owner who had many guinea pigs and could no longer care for them, so I'm sure she's a girl. Though I thought about it more recently and it just seems like she's getting bigger. Obviously if Sugar is a girl it's not a possibility she's pregnant, I know that. Maybe Sugar was sexed wrong I'm not sure. Should I be worried? I felt her sides and I don't feel any kicks, but the "lumps" on her sides feel squishy. Could it be an absess or lump instead?