She could be a Doberman but the ears even uncropped are a little big. If she is Doberman I did have one that was small at full grown so it could be. If you hold up her ears what does she look like? This is a picture of my prior two Dobermans; the female is the smaller one and it is possible if yours is a Doberman she is smaller; you can see the difference between her and my male. If you click on the picture it will zoom it in to see better; they were both cropped and docked. They were about 10yrs old each in the photo, they are now over the rainbow bridge.