Do dogs have the ability to detect human pregnancy? Expert opinions.

TL;DR
While there is little research-based evidence, anecdotal reports suggest that dogs may be able to detect pregnancy through changes in scent and behavior. Dogs' sense of smell is highly sensitive to changes in pheromones and hormones, and they may pick up on the scent difference caused by a woman's hormonal changes during pregnancy. However, dogs should not be relied upon as the sole diagnostic tool, and their findings should always be confirmed by medical professionals. It is important to prepare dogs for the arrival of a new baby by playing recordings of baby sounds and letting them sniff baby items.
Can dogs sense human pregnancy? Veterinarians weigh in Business Insider
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