A two-week umbilical cord bypass in the fifth month of pregnancy will not have a great impact on the fetus. Umbilical cord around the neck during pregnancy is a relatively common phenomenon, during this period pay attention to observe the changes in fetal movement and fetal heart changes, if the fetal movement and fetal heart are within the normal range of values, there is no need to be overly nervous, this phenomenon naturally occurring during pregnancy will not affect the fetus. In the second trimester of pregnancy, if there is a decrease in fetal movement, you should go to the hospital in time, which may be caused by the lack of oxygen in the uterine cavity of the fetus. The umbilical cord around the neck will affect the process of labor, in the process of delivery, the fetal heart deceleration, fetal head falling stagnation, this situation should be timely cesarean section surgery.