Welcome to Pregnancy Guide
Stages Of Pregnancy By Week Article
. For a permanent link to this article, or to bookmark it for further reading, click here.
You may also listen to this article by using the following controls.
Looking at Ultrasound Pictures of Stages of Pregnancy
from:The history of ultrasound is based in the sonar that was used by the worlds navies during World War 2. After the war, researchers began experimenting with sonar to see if it could be helpful in medical diagnosis. It was first used to detect cancers and other growths that needed medical attention. It wasn’t until the 1950s that the medical community recognized that sonar could be useful to take ultrasound pictures of stages of pregnancy.
Ultrasound is a series of very high frequency sound waves. These sound waves are of a frequency that can not be heard by humans, so they are not detected by the woman or the fetus. A tool called a transducer, which looks something like a stethoscope, is placed on a woman’s abdomen. The sounds go through her skin and bounce back off whatever they contact inside the abdomen, producing an image that resembles a fuzzy black and white photograph. These images have become the now familiar ultrasound pictures of stages of pregnancy.
The use of ultrasound became increasingly prevalent in the 1960s. By then, scientists had discovered that, if the sound waves were in motion, the Doppler Effect would produce more accurate pictures. The Doppler Effect is familiar to most people when they hear a horn coming toward them and then moving away. Since sound is different if it is coming or going, the technique was used to produce more accurate pictures. The technique also allows ultrasound pictures of stages of pregnancy to detect motion of the fetus.
By accident, it was learned that the best ultrasound pictures of stages of pregnancy were produced when the techniques was used on women with full bladders. The use of ultrasound has become a common practice in obstetrics and women usually enjoy seeing the first “pictures” of their infants.
Ultrasound pictures of stages of pregnancy are most common in the second and third trimesters of the pregnancy. By that point, the fetus is usually large enough that it can easily be detected. During the next several weeks, depending on the position of the fetus, it may be possible for a woman to discover not only the gender of her child, but whether or not she is carrying more than one child.
This information, however, is not infallible, as the pictures can be misleading in the earlier weeks of the second trimester. As the fetus grows and its organs, arms, legs, fingers, toes and head become more recognizable, it is easier to detect the gender of the child or children. The ultrasound pictures of stages of pregnancy also allow practiced physicians to detect any possible problems in the fetus.
Warning: file(http://www.searchfeed.com/rd/feed/TextFeed.jsp?trackID=Q3835304521&pID=62408&cat=stages+of+pregnancy+by+week&nl=5&page=1&excID=) [function.file]: failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found
in /home/cwatchco/public_html/preparents/stages/datas/searchfeed.php on line 8
Stages Of Pregnancy By Week Specific links
Stages Of Pregnancy By Week News
Neonatology Professor: Unborn Babies Feel Pain at 20 Weeks - LifeNews.com
 LifeNews.com | Neonatology Professor: Unborn Babies Feel Pain at 20 Weeks LifeNews.com by Steven Ertelt | Washington, DC | LifeNews.com | 5/25/12 1:14 PM The Subcommittee on the Constitution of the US House Judiciary Committee recently held a hearing on legislation that would ban abortions in the District of Columbia after 20 weeks fetal ... |
Brian Austin Green plays down Megan Fox pregnancy rumors - Seattle Post Intelligencer (blog)
Brian Austin Green plays down Megan Fox pregnancy rumors Seattle Post Intelligencer (blog) The “Transformers” beauty was said to be in the early stages of her pregnancy in March, but she and Green have yet to properly address the claims and Fox fueled the baby gossip last week by cutting short a TV interview on “Entertainment Tonight” when ... |
Anti-science and anti-contraception - CNN
Anti-science and anti-contraception CNN (This is in contrast to starting the 20-week count about two weeks later, when fertilization likely occurs.) As Amanda Marcotte notes in RH Reality Check, Arizona conservatives, in effect, said that women could be pregnant before egg and sperm unite. |
Modern Family Review: "Baby on Board" (Episode 3.24) - Paste Magazine
 Paste Magazine | Modern Family Review: "Baby on Board" (Episode 3.24) Paste Magazine It's hilarious to watch Eric Stonestreet act as seriously as any stage mother on Toddlers and Tiaras. Mitchell then gets a call from their adoption agency that sets the rest of their storyline in motion: A birth mother in Calexico has chosen them to ... |
Heated row led to murder of pregnant mother-of-six - Bedfordshire News
 Bedfordshire News | Heated row led to murder of pregnant mother-of-six Bedfordshire News In a case that lasted just over a week, jurors heard that on the morning of April 29 2011, Chrissy Peters, who was in the early stages of pregnancy, had been looking after her six children – four of whom were fathered by Quailey. |
Busse Woods walk raises awareness of preeclampsia - Chicago Daily Herald
Busse Woods walk raises awareness of preeclampsia Chicago Daily Herald By Jessica Cilella In April 2003, mom-to-be Johanna Aiken left her 38-week prenatal appointment with a clean bill of health. “I had a very simple pregnancy,” she said. “My doctor called it a textbook pregnancy.” Four days later Aiken went into labor, ... |
Nicola McLean battles back after devastating miscarriage - The Sun
 The Sun | Nicola McLean battles back after devastating miscarriage The Sun The 30-year-old was terrified that a night out in the early stages of pregnancy when she mixed Champagne and Prozac - a drug she uses to control her bulimia - may have been responsible for miscarriage. She told OK! magazine: "I did worry, ... |