Being pregnant with a dog may have an effect. Dogs can harbor a variety of germs in their bodies, such as bacteria and toxoplasmosis. If a pregnant woman is infected with Toxoplasma gondii in the early stages of pregnancy, it is likely to lead to fetal malformations, fetal hydrocephalus, etc., which will adversely affect the development of the fetus. Even in the middle and late stages of pregnancy, pregnant women with low resistance can easily be infected with pathogenic bacteria from dogs, leading to abnormal fetal growth and development. Pregnant women try not to have close contact with animals, poultry, etc. during pregnancy, these living things have more or less disease-causing microorganisms, and pregnant women’s resistance to disease-causing microorganisms also decreases during pregnancy, so if the disease-causing microorganisms enter the body, they may act on the fetus, resulting in abnormal fetal development. It is important to have regular checkups during pregnancy to observe the development of the fetus and deal with any abnormalities in time.