When does a baby's heart start beating?

Question

When does a baby's heart start beating?

Answer 1

18 days

Answer 2

3 weeks one day as per this calendar

http://www.ehd.org/pregnancy-calendar.ph...

Answer 3

week five

First heartbeats begin - If you have an early ultrasound you may not be able to recognize this tiny being as a baby, but there is no mistaking what it feels like seeing your child's heartbeat on that screen. That rhythmic beat is echoed in your own heart.

Answer 4

I heard my daughter's heart beat at 6 weeks, my 1st sonogram (internal sonogram).

Most amazing thing ever!

Answer 5

week 5

Answer 6

20-30 days  

Answer 7

22 days after conception.