Yes, it is possible your dog is pregnant. It is also possible your dog is experiencing a pseudo-(false) pregnancy. This occurs after a heat cycle--the mammary glands will develop and even produce milk even though no puppies are present in the uterus.
Have your dog examined by a veterinarian. At day 45 of pregnancy fetal skeletons calcify and can be seen on x-ray. This will confirm pregnancy. Small or singleton litters can occur and this may be why her abdomen is not very distended. Also it is important to confirm pregnancy to make sure you are feeding an appropriate diet.
Have your dog examined by a veterinarian. At day 45 of pregnancy fetal skeletons calcify and can be seen on x-ray. This will confirm pregnancy. Small or singleton litters can occur and this may be why her abdomen is not very distended. Also it is important to confirm pregnancy to make sure you are feeding an appropriate diet.