[fairyannanicole]

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? s far as the US tech was concerned my due date was the earlier one of november 13th, but this makes no sense to me about the rest of his size and weight???

 

[Naomismom]

Hmmm...not sure. Sorry you're dealing with this! I just had an u/s at 19 weeks and was told the baby was 10oz, which is right on. Maybe you're somewhere between 14 and 18. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/shrug.gif" style="border:0px solid;" title="shrug">

 

[fairyannanicole]

from what i can decipher from nosing around the internet, his height and weight put him right at 16 weeks, and if I ovulated little later, that would make perfect sense... This will drive me crazy until i see the midwife on Monday!!! I was told with my last 3 children they thought something was wrong because they had small femurs, I jut have little children, but they never changed my due date over it.

 

[CherryBomb]

No clue! I hope it turns out to be nothing, though.

 

[belchers1]

When did you get a BFP?

 

[fairyannanicole]

I got a BFP March 5th...

 

[ocelotmom]

I'm certainly no expert on ultrasound measurements, but, during my first pregnancy, DS's leg bones (can't remember which bone, specifically) measured short for dates and compared to the rest of him. If I remember right, it's a soft marker for Downs Syndrome. DS is perfectly healthy, though. DH has short legs in proportion to the rest of his body, so it may just be genetic in his case.<br><br>
A few years later, a friend of mine had the same experience - short leg bones noted on the ultrasound, resulting in a perfectly normal baby.<br><br>
In any case, my understanding is that second trimester ultrasounds should not be used for dating purposes, and I'd fight having my due date adjusted significantly based on that, especially if other measurements are as expected given your original due date.

 

[belchers1]

Hmmm... I have no idea. I was going to say, that if you got your BFP earlier then you would *KNOW* you were at least "X" far along. Can you go by when you DTD?

 

[fairyannanicole]

ahhhhh, so changing the date in the second timester may not be a good thing? My midwives nurse called me yesterday with concern over the US. I see her Monday, she wanted to make sure I was coming in, they asked me to go in today but the midwife was delivering a baby and they called befor I was about to leave. I know I am 18 weeks, my good gravy I feel my baby kicking pretty darn good, and have for about 3 weeks on a regular basis. The nurse did say however she didnt think the midwife would change my due date, now reading the other mamma above I see why. I think my mind will be more at ease when I know exactly whats going on instead of being in limbo. I have never had an amnio but Im almost wondering if it wouldnt be a good idea in this particular predicament? That would tell us axactly how far I am and give us a for sure reson for the fumur and weight difference?