You should weigh the decision to breed your dog the same way you would weigh the decision to have a child: carefully and ...

No matter how you slice it, a pregnant dog will gain weight. Female dogs may weigh significantly more than they did at the time of conception, with the amount varying based on breed and litter size.

Depending on the breed, dogs go into heat 1-3 times ... the physical and behavioral changes that happen to a dog that’s actually pregnant. Symptoms may intensify with each estrus cycle.