Hi jamrosky,
It's a little young to be definite on the sex but I would tend towards female.
It doesn't look like a Macleay River Turtle to me. Plastron colour, skin colour and carapace shape are nothing like a Macleay. Having said that, colour can be very affected by lack of sunlight or UV equivalent.
What colour are the eyes?
Otherwise it looks healthy from this photo.
Andrew