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#1
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04-13-2012, 10:16 AM
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 My Rank: MAJOR Poster Rank:12 Join Date: Jun 2009 Posts: 93,128
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Developing Embryo's From Start to 40 Weeks
A member said it would be interesting in my other thread so here they are  3 to 4 weeks: At this point of development the structures that eventually form the face and neck are becoming evident. The heart and blood vessels continue to develop. And the lungs, stomach, and liver start to develop.   6 weeks:     8 weeks: The baby is now about the size of a grape - almost an inch in size. Eyelids and ears are forming and even the tip of the nose is visible. The arms and legs are well formed. The fingers and toes grow longer and more distinct.  This little boy is at 9 weeks gestational age of embryonic life. Note the thin amnionic cavity surrounding the embryo. Sadly, a large uterine leiomyoma precluded further continuation of this pregnancy:  12 week fetus: The fetus measures about 2 inches and starts to make its own movements. You may start to feel the top of your uterus above the pubic bone. Your doctor may hear the baby's heartbeat with special instruments. The sex organs of the baby should start to become clear.    14, 15, 16, 17, 18 week fetus: The fetus now measures about 4.3 to 4.6 inches and weighs about 2.8 ounces. The top of your uterus should be felt about three inches below your belly button. The baby's eyes can blink and the heart and blood vessels are fully formed. The baby's fingers and toes should have fingerprints.       20 weeks: The baby weighs about 9 ounces and is about six inches long. The uterus should be at the level of the belly button. The baby can suck a thumb, yawn, stretch, and make faces. Soon -- if you haven't already -- you'll feel your baby move, which is called "quickening."   24 weeks, includes a child born at 24 weeks: The fetus weighs about 1.4 pounds now. It responds to sounds by moving or increasing its pulse. You may notice jerking motions if it hiccups. With the inner ear fully developed, it may be able to sense being upside down in the womb.     28 weeks: The fetus weighs about 2 pounds 6 ounces. It changes position frequently at this point in pregnancy. There's a good chance of survival if your baby was born prematurely now. (My son was born at this point ) 32 weeks: Often on the move, the fetus weighs almost 4 pounds. The baby's skin has less wrinkles as a layer of fat starts to form under the skin. It will gain up to half its birth weight between now and delivery.  36 weeks: Babies differ in size, depending on many factors (such as gender, the number of babies being carried, and size of the parents), so your baby's overall rate of growth is as important as the actual size. On average, it's about 12.5 inches and weighs 5.5 pounds. The brain has been developing rapidly. Lungs are nearly fully developed. The head is usually positioned down into the pelvis by now. A pregnancy is considered 'at term' once 37 weeks has been completed; baby is ready!   |
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#4
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04-13-2012, 03:28 PM
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 ♚ Legacy Gold Member ♚ Poster Rank:36 Join Date: Mar 2012 Posts: 43,070
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Re: Developing Embryo's From Start to 40 Weeks
The first few photos look like baby dino's. When I was preggers with my daughter, I put head phones on my belly and she would start flipping and rolling around. She's 9 now and still stops when she hears one of those songs...you can tell she's trying to remember where she knows it from.
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#8
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04-14-2012, 02:53 AM
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 ★ Legacy Member ★ Poster Rank:1646 male Join Date: Feb 2011 Posts: 337 Mentioned: 0 Post(s) Quoted: 3 Post(s)
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Re: Developing Embryo's From Start to 40 Weeks
excellent post. im learning about this stuff now and this post gave me some interesting views. thank you
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