Hi Puddy,
For what its worth I probably would not get another in the circumstances you describe. Its sounds like Puddy is very happy in her home with her routine. I know that feeling when you have to leave them (and I have 3!). I would not rock the boat and to be honest, Puddy may not be happy having to share her home.
Try to not feel guilty ( I know its not easy). BUT there would be nothing worse than bringing home another baby and then finding out your current baby is not happy especially if it is done predominantly to ease your guilt.
If however you really wanted another baby for other reasons..............then I would probably provide a different response