Our Jack Russell, Reagan had her pups on Friday. The runt is truly a runt; small and not vigorous like the other four. I'm making sure she gets latched on every two hours to nurse, otherwise she gets pushed out. Anything else I need to do or watch for? We've only raised one other litter and the 'runt' fended for himself just fine. We go to the vet tomorrow but in the meantime suggestions are appreciated.