A dog that is 61 days pregnant and does not move out of the nest means that it has not yet reached its due date. Generally, the average gestation period of dogs is 62 days, and it may be earlier or later depending on the breed of the dog and its own situation, so it is two days late. It’s okay. If it’s been more than 65 days, it’s best to take your dog to the hospital for a checkup to see if there are any abnormalities. It is best not to let the dog do strenuous exercise during pregnancy to avoid harming the dog's body. It is also necessary to provide the dog with more nutrition and appropriate exercise to avoid dystocia or calcium deficiency.