Judging from the composition of hyaluronic acid, it has little impact on the body and is generally metabolized in about 6 months. This is why hyaluronic acid filling is usually performed again after 6 months. If you find yourself pregnant after injecting hyaluronic acid for a period of time, you basically don’t have to worry about the impact hyaluronic acid will have on your and your baby’s health. If you are pregnant, it is best not to undergo micro plastic surgery. Even if the material itself is safe, the injection itself is invasive and the body's immune system will have a stress response. In addition, if an infection occurs, medications may be used, which may have adverse effects on the fetus. If other serious complications occur after the injection, more drugs may be used and the impact on the fetus may be greater.