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Is a sonagram more accurate at 18 weeks or 34 weeks?


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2006-07-10 14:13:17
2006-07-10 14:13:17

both are.. but at 34 weeks the baby is bigger and at 18 weeks the baby is moving and turning inside your stomach and its beautiful to be able to see it and you can also see what you are having at 18 weeks if the baby legs aren't close together...congrat and best of luck


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Because an ultrasound at 7 weeks and one at 18 weeks use different methods for estimating gestational age, they have different levels of accuracy. In general, a skilled sonographer's 7 week ultrasound is more accurate for dating than a skilled sonographer's 18 week ultrasound. Talk with your health care provider for information specific to your situation.

The most accurate time is between 18-22 weeks. Anything before 18 weeks is more of a guess, and anything after 22 weeks the baby might be too big to see between the knees.

The ultrasound at 18 weeks is about 90 to 95 percent accurate. It there is a flat place between the legs it means it is a girl if there is something hanging it means it is a boy.

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936 weeks* * * * *A year is not 52 weeks but 52 weeks plus 1 day (or 2 in a leap year). Allowing for these, 18 years is 1 or 2 days more than 939 weeks.

The ultrasound dating has excellent and precise estimation of gestation especially if done in the first trimester (first 12 weeks). After 12 weeks, its accuracy goes down. However, compared to dating according to menstrual cycle, the ultrasound would be more accurate.

Yes, you can tell the sex of a baby at 16 weeks, and it is close to 100% accurate. But a few factors will determine whether or not you can see the gender at 16 weeks. The baby's position and the mother's weight determine if you can see the gender clearly. With heavier women, it is harder to see a clear picture of the gender. Some women decide to check for the gender at 18-20 weeks for a more accurate ultra sound.

18 wks plusits about 18 weeks, usually by a scan but that isn't 100% accurate however mostly correct.

18 weeks x 168 hours/week = 3,024 hours in 18 weeks

Usually you can find out between 18 and 20 weeks. I found out that I was having a girl at 18 weeks 5 days. There is a test called intelligender that you can take as early as 7 weeks but I don't advise it. It said I was having a boy and I took it at 10 weeks. My Doctor said that he is 0 for 4 on that test being accurate. So just be patient and you'll get to find out soon! Trust me, those first 18 weeks flew by.

18 days until Nov 19, or about 2 1/2 weeks.

There are 2 4/7 weeks in 18 days.

A fraction may be more or less accurate: it depends on the context.If measuring the length of a pencil, say, 0.2 metres (a fraction) is less accurate than 18 centimetres (an integer). So it depends on the units of measurements being used.

18/4 = 4.5 = 4 months and two weeks

Today I am 18 wks. and 1 day. My conception date is supposely Oct. 4 or 5. My due date is June 28, 09.

~Make the question more clear please~

Have an ultrasound done at around 18 or more weeks along.

then you conceived 18 weeks and 2 days ago... lol

The entire fetus will continue to grow proportionally until shortly before birth (about 38 weeks).

The conception day would be 11/18/2008, based on you're due date. You're due date is more accurate in the early stages of pregnancy. SO if you got an ultrasound in you're first 12 weeks, it is pretty accurate. Good luck sweetey!

A year has approximately 52 weeks; you can multiply by that number to get an approximation. Or, if you need more accuracy, convert the years to days, then divide by 7.

Assuming she is qualified and experienced at her job she is probably right. However the ultrasound is not 100% accurate.

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