The absence of fetal heartbeat on the 68th day of pregnancy is considered to be a sign of poor embryonic development or failure of the embryo. Under normal circumstances, fetal heartbeat and buds usually begin to appear at 6 to 7 weeks of pregnancy, and in a small number of cases, the heartbeat and buds appear at 7 to 8 weeks. If there is no fetal heartbeat on the 68th day of pregnancy, it is usually considered that the embryo is underdeveloped or has ceased to exist, and the pregnancy needs to be terminated as soon as possible. If the pregnant woman’s menstrual cycle is disturbed, and the judgment of pregnancy week is not accurate enough, she can wait for 1 week and then go to the hospital for rechecking, and if there is still no fetal heartbeat after 1 week, it indicates that the fetus may be underdeveloped. If there is still no fetal heartbeat or buds after 1 week, the fetus may be underdeveloped or may have stopped developing, and needs to be actively handled under the guidance of a specialist. If there is a fetal heartbeat and buds after review, it indicates that the development of the fetus is normal, and regular checkups will be sufficient. In addition, if there are any other abnormal reactions during pregnancy, such as vaginal bleeding, abdominal pain, etc., you should consult a doctor promptly.