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.
Advertisement. The gestation or pregnancy period in dogs begins from the first breeding session or fertilization until the birth of the puppies. Though the period may vary as per the size or breed of the dog, usually, the gestation for small dogs as well as big dogs lasts for about 60 to 63 days, or 9 weeks. Female dogs have menstrual cycles throughout their lives and are capable of reproducing for as long as they live.