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The Beating Heart in Slow Motion: 4 1/2 Weeks Pregnant

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Uploaded by on Feb 25, 2008

By 4 weeks and 4 days the human embryo's heart typically beats about 113 times per minute. [Clip from "The Biology of Prenatal Development" DVD. For more information visit http://www.ehd.org ]

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  • I'm 4 weeks, I had no idea their hearts developed to fast.

  • thats a tiny,but cute heart :D

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  • Just saw my baby's heartbeat today, im 41/2 weeks, the baby was too tiny for the doc to see if things were going okay, had to do a vagina ultra sound to see the little heartbeat. I was excited but there are no words to explain how i feel now, and i know when i see my baby for the first time, i will have even less words.

  • 4 1/2-5 weeks is when I had a miscarriage. this is amazing.

  • @4208death i wouldnt say that u are fucked anyways but in future unless u are ready to be a dad, wear a condom because sperm comes out way before u cum it really isnt worth taking the risk unless u are ready to deal with the possible results which will be a baby.

  • wow... the're just so tiny! I can't believe it's been 39 weeks already since you came to my life, my little Princess, Love you sooooo much... sat 02-13-10 / sat 11-13-10 :-)

  • people who would kill that are sick nasty murdering people who need to rot in prision!!!! not just the awful parents but the doctors to.

  • @4208death you see a bit of sperm comes out way before you cum so your fucked any ways

  • ok guys i need an answer ASAP me and my girlfriend had sex and before i got the ejaculation "feeling" i pulled out and it all landed on my hands then i used a towel to clean it up then i used another towel to dry my hands but she used the same towel i dried my hands with now she's freaking out cus it was also her first time and i want to know what is the percentage of her being pregnant?

    thank you and please give me an answer ASAP please thank you

  • Pregnancy weeks aren't dated from conception, they're dated from the first day of your last period, so this would be 6 weeks pregnant if conception happened 4 weeks ago. Takes a moment to get your head around it! :)

  • @thixle No its 4 weeks because pregnancy BEGINS with fertilization!

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