There is no such thing as the fastest way to change head position from 37 weeks breech to head position, you can take knee-chest lying position, external inversion and other ways to change head position from breech to head position. 1. Knee-chest recumbent position: pregnant women with fetal position malposition can take the head-low-hip-high position adjustment under the guidance of the doctor, but need to insist on doing it every day in order to have a certain effect. In addition, pregnant women should empty their urine and loosen their pants before doing the knee-chest position. 2. External inversion: When pregnant women are 37 weeks pregnant, if the fetus is not in the right position, they should take external inversion to adjust the fetal position with the help of the doctor. External inversion is mainly used for pregnant women whose chest and knee position is ineffective, and the doctor needs to invert the fetus by pushing the fetus by hand, etc. It should be noted that this method must be done by hand. It should be noted that this method must be operated by a specialized doctor and should not be done by oneself. There is no fastest way to adjust the position of the fetus, pregnant women should go to the hospital in time and adjust the position of the fetus under the guidance of the doctor, and should not adjust it by themselves.