When did your pup realize that you were pregnant? I am only 11 weeks, but my dog has become extremely protective. He follows me everywhere, which he never did before. When I go upstairs, he will demand my husband to take him upstairs and check on me. When I shower, he will ask husband to open the bathroom door so that he can see me. It is very cute, but kinda weird. He has minor fear aggression issues towards other dogs. I am worried that his overprotection will cause new problems. And hell, how can he tell so early?