There are two possibilities for the absence of a fetal heart: the first is that the child may be too small for the fetal heart itself to be seen on top of the ultrasound. The second is that normally, the embryo should see the fetal heartbeat after the seventh week of pregnancy at the latest. If it is not seen after the seventh week, it is usually considered that the embryo has stopped developing. If the fetal heartbeat is not seen within seven weeks, it is necessary to continue observation, usually after waiting for a week or so, and then go to the hospital for an ultrasound. Patients are advised to do vaginal ultrasound for good results. This is due to the fact that in the case of abdominal ultrasound, it is affected by bladder fullness. If there is not a lot of urine, plus the fetal heartbeat is weak, it is not easy to see it under the ultrasound. Therefore, in the early stages of pregnancy, vaginal examination is more effective to check the embryo’s fetal heart.