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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Missing Heart Beat In A Sonography Test?

Hi I am 6week pregnant niw.doctor said after sonography still didn't find baby heartbeat.now dic suggested ti go next sonography on 16th may.is everything is ok or something to worry. Usually when does baby heart activity will start? Please help me. I'm very scared
Wed, 10 Jun 2015
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General & Family Physician,  's  Response
Hello. Thanks for writing to HCM.
I read and understand your question very well.
I try my best to help you in this.'

As you have 6 week pregnancy and not seen heartbeat. I tell you do not be panic about this.
First of all, you should have a second ultrasound to confirm the initial findings of both no heartbeat . You also need to make sure the crown-rump length measurement is consistent with 7 weeks. If it is closer to 5 to 6 weeks, then not seeing a heartbeat is totally different. If you are measuring 6 weeks or less, then you just need to wait a week and recheck that the baby has grown and a heartbeat can be seen. It will also due to miscalculation of dates. I will be hoping for good news for you and hope that it is just wrong dates!!!

I hope my advice will help you a lot.
Thanks and Regards.
Dr Vijay
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What Causes Missing Heart Beat In A Sonography Test?

Hello. Thanks for writing to HCM. I read and understand your question very well. I try my best to help you in this. As you have 6 week pregnancy and not seen heartbeat. I tell you do not be panic about this. First of all, you should have a second ultrasound to confirm the initial findings of both no heartbeat . You also need to make sure the crown-rump length measurement is consistent with 7 weeks. If it is closer to 5 to 6 weeks, then not seeing a heartbeat is totally different. If you are measuring 6 weeks or less, then you just need to wait a week and recheck that the baby has grown and a heartbeat can be seen. It will also due to miscalculation of dates. I will be hoping for good news for you and hope that it is just wrong dates!!! I hope my advice will help you a lot. Thanks and Regards. Dr Vijay