Congratulations on your puppy, I'm sure she is a beauty.
I guess I come from a different perspective. I disagree with the property laws common across the US and Canada ~ I don't
own my dogs. They are thinking beings for whom I have responsibility of care.
For me that care includes limiting to the point of removal the ability to reproduce. Please consider the very serious health and societal effects discussed in the links below and spay your beautiful girl.
http://www.hsus.org/pets/pet_care/wh..._your_pet.html
http://www.peteducation.com/article....2+1625&aid=926
http://www.almosthomerescue.org/spay...spayneuter.htm
http://www.askvetadvice.com/medical-...ying-your-pet/