Is it necessary to buy a fetal doppler？

In the third trimester of pregnancy, regular fetal heart rate monitoring is required to observe whether the fetus has intrauterine hypoxia. Fetal intrauterine hypoxia is first manifested in fetal movements, if the fetal movements are too frequent or if the fetal movements are reduced. All indicate that the fetus has hypoxia in the uterine cavity, and in this case, it is necessary to go to the hospital for fetal heart rate monitoring in time. Therefore, pregnant women can buy a fetal heart rate monitor at home to measure the fetal heart rate at any time, and the fetal heart rate is also a manifestation of hypoxia.