It does not matter what your dog weighs - the number is of no consequence.
LOOK at the dog's physique! Do you easily feel/see the last couple of ribs? Can you see a nice firm back? Is the underline tucked in nicely? Is the skin firm and taut? Is the chest tight and firm? If no, dog is probably carrying extra weight. Go by the feel and look of the dog - numbers are useless. She will be what she will be - feed her the least amount she needs to maintain a good weight. Keep these dogs lean - you can't imagine what a difference it makes...
Thanks guys! We had no idea and her dog trainer said she was done growing by now so I didn't know there was more growing to do. She just seems much smaller than most GSDs but obviously we love her regardless
Finn did the yo-yo weight dance between 6 months and 2 years; every time we turned around he was five pounds different in either direction. As long as they look right the way qbchottu explained, then you are fine. Whatever trainer told you that she was done growing by now is silly, IMHO. The first time there was no change in height/lenght with Finn was noticed at his 2 1/2 year vet appt. He grew another inch in either direction by 3 1/2, but he was pretty much done growing after 2 1/2 years.