Give attention always. Provide well balanced nutritional food with a 25- 40 percent average increase in food consumption. Any vitamin and especially calcium supplements should not be provided until required or suggested by a veterinarian upon clinical examination as it may complicate normal calcium regulation.
Light play time with regular short walks are necessary. Do not overexert your pregnant dog but also don’t let her become lazy. Also make sure she doesn't socialize with other dogs during pregnancy just to avoid contacting any disease/ecto-endoparasitic infestation.