Yutin is also known as levonorgestrel tablets, after eating levonorgestrel tablets 20 days after the discovery of pregnancy can be, after that, to do a good job of pregnancy maternity examination, there are abnormalities in time to deal with. Levonorgestrel tablets belong to the emergency contraceptive, is a kind of anti-estrogen activity of progesterone, through the inhibition of ovulation and prevent the pregnant egg to achieve the effect of contraception, take the drug 20 days after the discovery of pregnancy, the willingness to continue the pregnancy first retained, does not necessarily have an impact on the development of the embryo. There are no abnormal symptoms during the continuation of pregnancy, and the results of all pregnancy tests, such as Down’s syndrome, NT examination, four-dimensional ultrasound, and non-invasive DNA examination are all normal, which means that the levonorgestrel tablets taken before have no effect on the development of the fetus, so you can rest assured that the pregnancy will continue. Continuing the pregnancy in the first trimester of pregnancy to take folic acid tablets, do a good job of pregnancy obstetric examination, there are abnormalities in a timely manner.