During this canine pregnancy scan (approx. 6 weeks post-mating) I found fluid inside the uterus, but no pregnancy. This should be checked by a veterinarian, as may need antibiotics to resolve.

Feline pregnancy scan on Gaia, approximately 6 weeks
Gaia the very curious cat came for her pregnancy scan today. We identified heartbeats in 4 individual kittens, and used pulse wave Doppler to listen to and trace the heart