I don't know how much she weighs these days and I don't know how much her live rat pinkies weigh but they are big enough for her size. I'd say at her biggest, she's about an inch and a half or 2 in diameter. I mean, I have scales but she won't fit on them haha..

So it's normal for them to only poo a couple times a month?

She's getting out of being a juvenile if that helps.. she's only maybe 5 months old at most