For the most part I don't know of any known issues to look out for with Huskies. They should birth similar to any other dog of similar size. They do not require a C-section like some breeds, nor are they prone to complications as long as the female was healthy throughout the pregnancy. Since the father is of similar size (I assume anyway) that shouldn't create a problem either. If the father was a giant breed then there might would be concern but the vet should have made mention of if the pups were looking or growing larger than might be manageable. That's my hearsay on the matter. I personally have all my dogs fixed and haven't allowed any of my intact females in the past to breed, so I haven't first hand been through it. Just keep an eye out for elevated stress and go through what you already know since you've been here before with other breeds. Shouldn't be much different.