Can you feed her any earlier or is 4:30 the earliest you are able to? Maybe if she ate earlier then she would eliminate earlier....I don't know, just a thought. Sometimes my puppy (Wicket) who is 5 months old has to go immediately after eating and sometimes he doesn't go for several hours afterwards. There doesn't seem to be any consistency with him, except he always goes first thing in the morning when I take him out. I wonder if your puppy is shy about eliminating in front of people??