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When does a fetus heart beat start beating

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At week 5 of fetal development, you won't be able to hear it, but the heartbeat may be detected with an ultrasound! ChaCha! ( Source: http://www.chacha.com/question/when-does-a-fetus-heart-beat-start-beating )
More Answers to "When does a fetus heart beat start beating"
When does heart of fetus start beating?
http://wiki.answers.com/Q/When_does_heart_of_fetus_start_beating
Somewhere around the 30th day after fertilisation, the primitive cells of the heart start a rhythmic contraction that becomes the heartbeat. For more information I suggest you search for Carnegie Stages, and here's a link to the earliest po...
When does an embryo/fetus's heart start beating??
http://answers.yahoo.com/question/index?qid=20080410104613AAKr4FC&show=7
22 days after conception (conception being when the sperm and egg meet). Which would actually make a woman slightly over one month pregnant because pregnancies are dated from the last monthly period.
Does A 8 Week Fetus Heart Beat?
http://www.blurtit.com/q4159412.html
Yes, you can easily see the fetal heart beat by an ultrasound at 8 weeks. It can be seen even earlier, especially if you are doing a vaginal ultrasound. I saw my 6 wk 2 d fetal heartbeat by a vaginal ultrasound.

Related Questions Answered on Y!Answers

When does a fetus heart start beating?
Q:
A: OK,baby.You will learn this when you finish RN school.6-7 weeks
When does an embryo/fetus's heart start beating?
Q: In what week or month
A: 22 days after conception (conception being when the sperm and egg meet). Which would actually make a woman slightly over one month pregnant because pregnancies are dated from the last monthly period.
When does a baby's heart start beating?
Q: Every where I look, everyone has a completely different answer...So tell me when does a fetus's heart REALLY start beating? How many days/weeks after conception?And how large is the baby usually at this point?
A: 18 days past conception. Before most women even know they're pregnant. The baby is still tiny, like smaller than a grain of rice but it still has a beating heart
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