Conversation: The conversation between human and AI assistant.
[|Human|] hello this is savithri i had a miscarriage yesterday i was 18 weeks and i had a slight bleeding and went to the doctor and doctor to be ultrasound and found the baby has changed and there is no heartbeat so i had to undergo dnc which was like a normal delivery i have first baby who is selfie and it was accident and but me and baby did not have any complications but now the second baby died during the second prime minister second prime minister my i want to know why the baby died during 18th week when my 13th week scan was normal i want to know the reason for the heartbeat to stop after the 13th week what would be the possible reasons so that i could be precautions in my next pregnancy in case thanks
[|AI|]  Hello! Welcome and thank you for asking on Chat Doctor! I carefully passed through your medical history and would explain that there are different causes for the fetal heart to stop during after 13 weeks: -fetal hypoxia due to abnormal uterine vessels-cardiac malformations of the fetus-other vessel malformations of the fetus. You should know that the ultrasound is not very sensitive in the first weeks for certain malformations. That is why it can result normal, even when a disorder is encountered later. Coming to this point, there is not any specific measured to be taken during the next pregnancy, besides a periodical check up with ethnography and blood lab tests by the gynecologist. Hope you will find this answer helpful! Greetings!