14 weeks pregnant placenta currently low state can not cohabit. When the ultrasound examination at 14 weeks of pregnancy suggests that the placenta is currently in anterior position, it means that the lower edge of the placenta is close to or reaches the endocervical opening, and due to the low position of the placenta, it is easy to cause bleeding after exertion or strenuous exercise, which will increase the risk of miscarriage and infection. Therefore, when the ultrasound indicates that the placenta is in a low state, it is not possible to have intercourse, but also pay attention to appropriate rest, and when the general situation is stable, you can follow the doctor’s instructions to observe dynamically, and review the ultrasound on time. Due to the relatively small uterine cavity in mid-pregnancy, the placenta covers about 1/2 of the uterine cavity, and ultrasound examination of some pregnant women will indicate that the placenta is in a low position, but with the increase of gestational weeks, the uterus enlarges, and the formation of the uterine lower segment, the original position of the uterus in a low position will be moved with the uterus upward, and the placenta will be changed to a normal position. However, some pregnant women with high risk factors such as history of uterine operation and cesarean section may also have a combination of placenta praevia or placenta praevia, which requires better management of the pregnancy, timely checkups and timely termination of pregnancy according to the condition.