First, my sincere condolences on the passing of king Julien the second. That's so, so tragic. You were doing the right thing.
Second, congratulations to Dobby and her new arrivals. No, you should not need to help her with the feeding other than making sure she is eating enough food. Provide her with unlimited food and give her extra energy in the form of rolled oats. (Don't give the babies pupply formula. For more help re: the babies, it might be worth checking out degu-specific forums like the Degu and Chinchilla World forum or Degutopia).
Good luck with the babies. Please keep us posted as to their progress.