So recently my brothers kids moved in with us and I was sitting in the living room talking to my nephews mom which is my god son well we was going down memory lane cause I have not seen my neice and nephew in a whole year cause of the mother... Anywho out of no where he comes to me smile and point to my stomach and says Baby and smile and ran off now he is two years old my niece by my sister she is 1 years old and she is very clingy if she goes to sleep in my room she wants to lay on my stomach or have one hand in my stomach or when she plays she hits me in my stomach a lot I have a dog and cat who are very clingy too I'm confuse can they sense pregnancy without you knowing?