Placenta previa at 14 weeks of pregnancy has no effect on the fetus if there are no obvious symptoms; if there is bleeding and other abnormal manifestations, it may affect the fetus. Placenta previa occurs in the middle stage of pregnancy, i.e. 12-28 weeks, when the edge of the placenta reaches or covers the endocervical os. Generally, as the pregnancy progresses, the placenta will mostly rise out of the hypoplastic state. Therefore, simple placenta hypoplasia without obvious symptoms can be relieved on its own, and this state has basically no effect on the growth and development of the fetus. If the low position of the placenta causes bleeding, it may interfere with the normal pregnancy and lead to miscarriage or preterm labor, thus affecting the growth and development of the fetus. In summary, for 14 weeks pregnant women with placenta hypoplasia need to dynamically observe the changes in the position of the placenta as well as their own symptoms such as bleeding, and also closely monitor the growth and development of the fetus, if abnormalities occur, you need to consult a doctor as soon as possible for standardized diagnosis and treatment.