I had an xray done with the one litter we had so far and will continue to do so for all future litters. Being new at it all is the main reason I had it done the first time....I will continue to have them done to get an idea of the best possible puppy count, size, and any possiblity of complications. I know that it may not always be totally accurate and some complications are not predictable, but any bit of information beforehand is helpful. IMO
BTW - 1st xray clearly showed 4 puppies - no forseeable problems....it was RIGHT ON!