At 53 days of pregnancy, if the pregnant woman’s menstrual cycle is regular, the length of the fetal buds is usually 6-12mm, which is normal. Everyone’s menstrual cycle is different, and the time of fertilization of the egg cells is not the same, and the length of the fetal buds is different. At 53 days of pregnancy, the fetal buds should appear fetal heartbeat, as long as the fetal heartbeat is good, the back of the gestational sac develops at a normal rate, there is no need to worry, if the menstrual cycle is irregular, such as menstruation is often delayed, if the pregnancy is 53 days old, and there is no fetal heartbeat and fetal buds, it is also normal, you can observe for one week, and after one week, if it still doesn’t appear, it suggests that it is an empty sac pregnancy. If the pregnancy is really empty sac, it is recommended to choose abortion, such a gestational sac there is no need to continue the pregnancy, even if the pregnancy continues to be prone to miscarriage.