My very pregnant female named Big has been doing this funny thing lately - she'll make little squeaks, several in a row, when she is lying down by herself. It's almost as if she's talking to the babies inside of her. I really do wonder why she does it though - she never has before. She's also become quite lethargic, but with a belly that big, who wouldn't be? She still thinks she can run on the wheel every now and then, though. But what are those quiet little squeaks she makes sometimes?