Labor in all animals is very painful and stressful condition. If you are not a professional breeder then don't go for whelping in your Husky at home and get help from vet. Her duration of labor depends upon litter size. If she has small litter then she will be free in short time and more time is needed for large litter.
Uterine contraction during labor is start of true labor in dogs. This can cause shaking and restlessness and can last for 6-26 hours after which delivery of first puppy takes place. Then she can go for rest for maximum 2 hours with an average of 30-45 minutes. During this resting periods, she will clean her puppy followed by delivery of second puppy. So, this process is repeated until all puppies are born. This can take 2-6 hours. Finally, placenta is expelled out that can take few minutes to 4 hours.
Uterine contraction during labor is start of true labor in dogs. This can cause shaking and restlessness and can last for 6-26 hours after which delivery of first puppy takes place. Then she can go for rest for maximum 2 hours with an average of 30-45 minutes. During this resting periods, she will clean her puppy followed by delivery of second puppy. So, this process is repeated until all puppies are born. This can take 2-6 hours. Finally, placenta is expelled out that can take few minutes to 4 hours.