Congrats,I've shot alot of deer with a bow over the years.As was said before not everything is written in stone.I've shot deer perfectly quartering away and never found any blood untill you got within 10 yards of the deer.I've shot deer right in the boiler with a perfect exit out right behind the lower side of the rear leg and found very litte blood.Why?Who knows strange things can happen.Thats why it is very important to know where you hit and watch and mark mental references on where the deer went after the shot.