You have to remember she is LITTLE! It is just like assuming a 3-5 month old baby will be potty trained.
You haven't had her long enough for her to know that pottying in the crate is a big no no.
**How long are you leaving her in there?
**Are you taking her out before and after she eats and drinks and play sessions?
**If you are leaving her in there for extended amounts of time you can't NOT expect her to go in the crate. I am single and work for 8 1/2 hours at a time and when Keegan was a puppy and I would come home to let her out I expected her to go in there I kept a towel in there so I could easily wash it. I always had to make sure I had her right by the door or carried her out b/c she would squat as soon as she got out no matter where it was.

And actually Jackie - I think that goes against what all I have ever heard about small breeds. That their bladders are smaller altho of course their bladders are the right size relative to their body size but they have to be let out more frequently then bigger breeds. That is what I have always heard anyway. I kind of had to keep that in mind when looking for a dog as I am single and didn't have anyone to let it out of its crate when I was at work.

patience patience patience..... and at least she is small enough you can easily bathe her everyday.