Please don’t judge me...

I feel like I’m an emotional mess. After my miscarriage in 2015 we haven’t been able to conceive again and my husband got a dog. He is super cute and really sweet. But my husband refers to the dog as his son and I can’t say the same. I lost my son and a dog can’t replace that. Of course I’m not mean to the dog, but I treat him as a family pet, not my child. My husband calls him son and treats him like a kid. Am I wrong for feeling this way? Encouragement or advice would be nice.