10-12 weeks: The baby's heart starts beating at 6-8 weeks but you generally can't hear it till 10-12 weeks and then only with fetal doppler. Here's what it will sound like: (speakers on!) http://pregnancy.about.com/cs/pregnancyphotos/l/blheartbeat.htm
Answered 9/9/2014
3.7k views
8weeks: Typically at 8 weeks gestation a heart is seen by abdominal US and the heart beat can be heard. If a intravaginal US used, then even @ 6-7 weeks, heart beat may be heard.
Answered 9/10/2014
3.7k views
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