Is it normal for abitch to only have one pup?

Yes, it is normal for a bitch (female dog) to have only one pup, though it is less common. Factors such as the dog's age, health, and breed can influence litter size. In some cases, a single pup may occur due to various reasons, including genetic factors or complications during pregnancy. While most litters consist of multiple puppies, having just one is not unusual.