Most pregnancies and births take their natural course, and there is no need for human intervention. However, you should call the vet if any of the following occurs:

• The Pregnancy runs for more than 65 days.
• No puppy has emerged 2 hours after the start of contractions, or has not been delivered within 30 minutes of first becoming visible.
• More than 3 hours pass between the delivery of the puppies, especially if the female is straining hard and appears unsettled.
• The female appears lethargic and her contractions are not strong enough to expel the puppies, or she seems exhausted.