Those symptoms include: 1  Shortness of breath or inability to exercise. 2  Swelling (edema) of the feet and lower legs. 3  Fatigue and weakness. 4  Rapid, forceful, uncomfortable or obviously irregular heartbeat (palpitation) 5  Abdominal discomfort such as swelling, pain or nausea. 6  Mental confusion.
*It's important that you enter the 1st day your dog was bred. Assumes a 59-63 day gestation period. If you are reading this well in advance of the due date for your dog, we have several product suggestions from Amazon we would recommend for helping the whelping process go smoothly. The nice thing about Amazon is the free shipping for eligible orders over $25 and the great product reviews from Amazon visitors.
Chris Amaral/Digital Vision/Getty Images. Canine gestation lasts an average of 63 days, although it's normal for dogs to deliver a few days before or after that time. If you bred your dog, you have a good idea of her due date. Veterinarians can calculate the approximate due date of dogs with an unplanned pregnancy.