My chiguagua 2 and 1/2 years old is very aggressive to my 7 y/o chiguagua. I see her more fat and I believe she is pregnant by a chiguagua from the other house. How I really identify that she is pregnant? Being pregnant cause to be aggressive to other female dogs in the house? How I can control that? How I can protect both dogs of fighting and this is temporary?.
A simple blood test at the vet can determine if she is pregnant. vetcare