I would be confident that my shot was leathal. I would give a deer an hour minimal, reguardless of how lethal I thought my shot was. So, in this case, If I wait an hour my blood trail may be minimal, and since my arrow didn' t pass thru my blood trail may be sparce. So there is no sense in looking for him now. If I jump him and he has enough piss and vinegar to run I stand a good chance of never finding him. So I slip out as soon as I can and come back in the morning.
That night I pace and hope I made the right decision.