Girls, help? Start of menstruation 13.02. According to calendar (based…

Girls, help? Start of menstruation 13.02. According to calendar (based on menstruation) shows 9ne1d According to ultrasound first it was already delay. Embryo saw, at 3-4 weeks they were setting. At the time of the menstrual cycle 5-6 weeks. According to the second ultrasound (I went to check the heartbeat) there is no heartbeat. They write that frozen term 5-6 weeks. The PA was 21.03. Can it be due to late ovulation, for example such a spread in terms according to ultrasound and by months? And wait for the heartbeat? Or should I wait for cleaning already? Has anyone