I had a similar incident last season. Shot a doe little too far back and at the angle it split her stomach. Had a very weak trail so called a more experience buddy and he helped. He went to where they bed and found her trail. Along there found really good blood where she laid down. We eventually found her still alive. I had to put another arrow in her but we recovered it. My buddy drug it out while I went back for my gear. He joked with me later ... "you want me to eat it for you too"