
the purpose of false preganancy is to bring other bitches into lactation to help feed the Alpha bitches pups, in order to reduce the strain, or to prevent the loss of pups should the mother die. All bitches that have seasons will go through the same hormonal changes as a bitch that has been mated. some show very little signs, but all will have some mammary development around the time they woudl have whelped, and some have full blown phantoms.
The bitch may be particularly maternal and enjoy this role, and I would leave it to her, as it is unlikely to conunue too long as the pup is at an age where it's dam would only be feding it very little primartily for comfort.
Whether this will mean your bitch is more likely than previously to have phantome preganancies in future is debateable, as the very presence of the pup may have had a difference, even if she wasnb't allowed to feed.