Question: how to know if your dog is pregnant without going to the vet?
Answer: Decreased Activity. If your dog easily becomes exhausted or is spending more time napping, it may indicate that she is pregnant. ... 
Changes in Appetite. ... 
Unusual Behavior. ... 
Enlarged or Discolored Nipples. ... 
Weight Gain and Enlarged Abdomen. ... 
Nesting Behaviors.