Taking Viagra, also known as sildenafil citrate, generally has no effect on pregnancy, but it is still necessary to perform close maternity tests to monitor fetal growth and the presence of genetic disorders, and the drug should be avoided if it is being used in preparation for pregnancy. Sildenafil citrate is mainly used to treat erectile dysfunction, and there are no studies to prove that it has an adverse effect on sperm quality, so it is generally not a problem. However, the use of the drug should be prohibited during the preparation for pregnancy, during the preparation for pregnancy if there is a decline in sperm quality, the quality of sex life is not high, need to exercise to change the diet and other care to improve sperm quality. At the same time, if you take sildenafil citrate to get pregnant, you need to go to the obstetrics regularly, closely observe the growth of the fetus and do a good genetic screening of the fetus. Sildenafil citrate is contraindicated in patients who have recently used or are using nitrate drugs, guanylate cyclase stimulant drugs, or are allergic to sildenafil. The drug should be applied under medical supervision.