Can a man test positive for pregnancy? Oh sure, he can. Only it would not mean that he is pregnant, but that he is very seriously ill. All common pregnancy tests measure the presence of human chorionic gonadotropin hormone (hCG) in the body. It begins to be produced one day after the fertilized egg has attached itself to the uterine wall. Actually, two stripes on the test mean that the hormone is present in the body, which means that the embryo has already started its development.