There is no data to support the probability of having a normal baby with a low placenta at 17 weeks of pregnancy, so it is impossible to tell. Low placenta, i.e. low placenta, refers to the situation where the placenta is attached to the lower part of the uterus close to the position of the cervical opening and the edge of the placenta is less than 2cm from the inner opening of the cervix. If the endometrium is disrupted by multiple abortions, purging and other uterine operations, it may cause the placenta to migrate downward in the process of formation. Generally the low lying placenta may gradually migrate upward with the increase of gestational weeks. Therefore, if the placenta is found to be attached in a low position in the early or middle stage of pregnancy, close monitoring may be carried out first. Pregnant women are advised to pay attention to rest and avoid prolonged standing and squatting. Avoid sexual intercourse to prevent bleeding and affect normal pregnancy. In addition, 17 weeks pregnant placenta position is low, need more bed rest, once the abnormal situation timely to the hospital for examination. However, if the placenta position is still low after 28 weeks of pregnancy, you should go to a regular hospital immediately to avoid delay.