Signs of a dog three days before giving birth

Three days before a dog gives birth, the belly will be very bulging, the nipples will overflow with milk, and the nipples will turn pink. Three days before delivery, the dog's labia will gradually become soft, swollen, and congested. The wrinkles on the skin will flatten out and the skin will turn slightly red. Before giving birth, dogs will have nesting behavior, and they will suddenly become active, chewing soft objects everywhere, and building nests. If it is the dog's first birth, the owner must keep a record to facilitate future care.