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Discussion Starter · #1 ·
I had an ultrasound today, having our 6th boy!!!!!!! They said he was the length and weight of 18 weeks, but his femur measured 14 weeks so I was probably 14 weeks. I have been feeling definite movement for 3 weeks, and my uterus is measuring 18 weeks. I am CONFUSED!!! I see my midwife Monday and will go from there as to what she thinks. Anyone have any experience or answers why my baby is huge for 14 weeks, or normal for 18 weeks but extremely small femurs? The baby was 4 inches from crown to rump and 3 ounces. Everything i come up with says 1 and a half ounces for 14 weeks, and 3 inches or so for height. Wonder how my midwife will decide this one?
 

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I'm going through something similar...only the reverse. I thought I was 24 weeks, but at my u/s last week, the tech said I was 26 weeks. I have gestational diabetes...so my babies tend to be big. But my midwife said that at this stage, it's not a fat thing...but more of a bone length thing, so it's likely to be accurate.<br><br>
I've decided to make my EDD sometime between the two due dates. LOL
 

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You weren't sure of your dates from the get go, right? I think you were in the Nov. ddc and then moved to the Oct. ddc, right?<br><br>
My guess would be that you are somewhere between 14 and 18 weeks. U/S measurements are pretty off the later you get into pregnancy. Given that babes femur is measuring 14 weeks, I would say you are very likely not 18 weeks. You might be measuring ahead still because this is your 6th pregnancy? You'll probably continue to measure ahead for a few more weeks (at least this is my trend, I measure greatly ahead for the first 20 weeks until everything fills out...then I measure only a couple weeks ahead, though measuring the uterus has been proven to be very inaccurate.)<br><br>
Anyway... My guess is your midwife will go somewhere in the middle, say 16 weeks. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile"> I've been feeling movement here and there since 10 weeks.
 

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Take a look at the adults around you, and whether any of them have perfect proportions?<br><br>
Fortunately I had just read "The Genotype Diet" before I conceived, which talked a lot about different body types with very different proportions, and how these proportions are set in the womb with a combination of genetics and environment.<br><br>
And I had been sized for a custom bike a few years ago because all regular bikes hurt -- turns out I have a long torso and shorter legs, but all the shortness is in my lower leg and my femurs are actually long for my height.<br><br>
Daddy is also of interesting proportions: he's got the torso of somebody 6' tall, while he is 5'8". His inseam is shorter than men I've known who are 5'3". Right now the midwife is telling me the baby is very tall, based on the feel of him head-to-butt, but I think he's probably going to be of average total length with a long body.<br><br>
At our 20 week the dating was all over the place. The femur length made him older, something else made him seem younger. It turned out that the average (after taking every measurement twice) was pretty close (I know when I conceived), but individual measurements skewed it by a week or two either way.<br><br>
Even when individual measurements are consistent, the ultrasound dates can be off by a lot by that gestational age.<br><br>
Can you recall anything unusual around the dates you might have conceived? For me in retrospect I've been able to remember a day when I was EXTREMELY "in the mood" and, for lack of a better term, wet - mucous of an unusual consistency and abundance. Then, a day shortly after where I had pain (implantation) and spotting. Since it's your 6th maybe you recall some of these things that help you pinpoint your typical fertility cycle.
 

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Discussion Starter · #5 ·
It makes sense that I would be 14 weeks rather than 18, I was either or, I really just dont understand why the baby would weigh 3 times the weight it should? Seems odd. If I go by weight and length and not femur, that makes me 16 weeks,which would be a bit odd, because I had a period January 12th and February 8th. My dr thought that my February period was spotting. I didnt think that having more babies meant a difference in size of babies? My last 4 have been right around 6 pounds. This is however a different father. I really just cant get over the weight issue. Seems a bit early to just be having a chunky baby, 3 ounces at this stage is a HUGE difference from 1 and a half ounce?
 

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U/S is not infallible when it comes to measurements, it's highly subject to the interpreter. So one tech might have said babe weighs 3 oz, while another could guess at a much lower weight. It's all guesswork. I often hear of women being told that they need to be induced because babe is 9lbs and still getting bigger, babe is born at something silly like 6 and a half pounds. Later u/s measurements for dating purposes are notoriously inaccurate because there is so much variation in 'normal' after the first tri.
 

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Glad you're getting some good answers. Just wanted to say, CONGRATULATIONS on boy number 6!!! Wow!!!!!! <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile">
 

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Discussion Starter · #8 ·
Oh yes,i am VERY excited and surprised, well not really lol. 6 boys, man<img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile">
 
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