I’m very new to breeding, having never had a litter of puppies in my life, and I took my girl in for an ultrasound at 5 weeks following a side-by-side AI breeding. The vet assured me that there are no puppies, but my dog is acting pregnant: she’s clingy, sleeps all day, has to be hand-fed or she won’t eat, and she just seems uncomfortable. She’s usually a very active, rambunctious dog who loves her meals. Thoughts?