Theres way too much I don't know about it to give you any ideas.....even If I knew everything I'm going to mention it wouldn't necessarily point in any particular direction..
Was there hair at the impact spot? What color? How much?
Bone at the impact spot?
Did the doe take off straight away or meander at all?
Did she appear "hurt"
Was the blood "frothy"? Bubbles in it? Bright red? Dark red?
Did the blood slowly stop or stop all of a sudden?
Was there a swamp or water nearby?