The meowing and small amount of urine (although they don't make much at that age), may mean she has a blockage or infection and is in pain. Please get her to the vet right away, this can be life threatening, especially in such a young one. She should be going to the vet anyway...first thing to do with a new kitten is a vet visit to make sure all is well.
Edited to add:
Where are my manners? Congrats on the new baby, welcome to the forum and post some pics for us
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Holly, Misty & their friend, Jake, the dog.
Onyx, Callie May, Maggie & Kobi forever in my heart.
Yes, I know I need a new signature pic...someday...