Question: how soon can a dog tell if you are pregnant?
Answer: The hCG in your urine, for one, skyrockets from 5 mIU/L in week 3 of pregnancy to up to 426 mIU/L by week 4 and 7,340 by week 5! So if it seems like your dog is acting unusual during your pregnancy, you could be very right in assuming that he or she really is sensitive to the changes going on in your body.