CMV is a cytomegalovirus, which is a member of the herpes viruses and is transmitted through direct contact with infected tissue or body fluids. It is transmitted in a variety of ways, including intrauterine secretions, cervical secretions and breast milk. Cytomegalovirus infection in early pregnancy can be transmitted to the fetus through the blood and placenta and may cause fetal malformation or embryonic abortion. It is recommended that if you test positive for CMV, you should not become pregnant during the treatment period. Follow the doctor’s reasonable advice for treatment based on the test results and wait until the CMV test is negative before preparing for pregnancy. During the treatment period, it is important to avoid sexual intercourse because CMV can also be transmitted through sexual intercourse.