Mothering Forum banner

1 - 9 of 9 Posts

·
Registered
Joined
·
334 Posts
Discussion Starter · #1 ·
Well I had an ultrasound today at (supposedly) 29 ish weeks but the baby is still measuring ahead, this is the third u/s i've had where he has measured ahead. He weighs 4lbs already which puts him 3 weeks ahead with an EDD based on size of 1-19. The last u/s I had at 20 weeks said 1-25 and the one before that 1-23. Now, I realize that there is an error rate of a lb or so w/ u/s but three different techs, three different u/s say earlier than the original EDD of 2-5 which was also based on an u/s because i did not have a LMP. So what are the chances that my little boy is coming sooner than anticipated? Oh, I should add that my daughter was born at (supposedly) 41 w 3d by induction and was 8lb 10 oz so I do already have the tendency to make big babes. Just curios how you other ladies might interpret such a leap in EDD especially with 3 correlating that he is due in january and only one saying feb.<br>
ETA: He is already head down and appeared to me to have his head very low in my cervix. If that tells anyone anything?
 

·
Registered
Joined
·
1,618 Posts
From everything I've heard, the later on you do an u/s the less accurate it is. So I would go by the first u/s you had period, since that will be the most accurate. Seeing as your DD is larger than average, my guess would be this little one is also going to be a bigger baby.<br><br><br>
With DS, I knew my EDD of April 15th was correct. That was what the first u/s I had put me in the neighborhood of (at 6 weeks pregnant). At 18 weeks pregnant, when I had the "big" scan, they tried to move my EDD to April 8th because he was measuring a week big. There was NO WAY he was a week further along, with when we had "done the deed" it just wasn't possible. I had another u/s at 36 weeks to check his size, because I was measuring a month ahead for fundal height - his measurements were anywhere from 38 weeks to 40 weeks based on size (his head being the biggest part measuring a full week ahead).<br><br>
He was born 15 days early weighing 8 lbs. 15 oz...so he was basically just a big baby.<br><br><br>
I've been "lucky" - the sizing u/s I've had have been fairly accurate within half a pound. However a girlfriend of mine just had one, at the same u/s center I've gone to, and they tried to tell her that her baby was going to be 9-10 pounds at 39 weeks - he was born pretty much on his due date give or take a day and weighed a lowly 7 lbs 2 oz...so the u/s can be way off at this point...
 

·
Registered
Joined
·
1,618 Posts
Wanted to add - I don't think his position has any bearing as to his age...all my kids were head down from 20 weeks (with the exception of the one I'm currently carrying) and DS was so LOW I'm surprised he didn't fall out - I walked around the entire weekend with him at a 0 station, 75% effaced and 5 cm dilated before going in for my induction...
 

·
Registered
Joined
·
695 Posts
Yeah, it's hard to say. I kept asking my doctors this as well because this baby was measuring so ahead and I really thought that we had conceived earlier than they said. But they kept telling me that the first ultrasound is the most accurate--that's why they do them so early--and that from then on babies vary too much to really date them. So I guess I would just stick with the original, but start preparing all the last minute details a little early just in case!! I find though that I'd rather plan on the baby coming later so I'm not disappointed when they haven't arrived earlier :p
 

·
Registered
Joined
·
334 Posts
Discussion Starter · #5 ·
good point on the dissapointment. haha my luck he'll still be baking on valentines day. lol
 

·
Registered
Joined
·
491 Posts
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>NicoleS</strong> <a href="/community/forum/post/14715232"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">From everything I've heard, the later on you do an u/s the less accurate it is. So I would go by the first u/s you had period, since that will be the most accurate. Seeing as your DD is larger than average, my guess would be this little one is also going to be a bigger baby.</div>
</td>
</tr></table></div>
<br>
I agree. But, I don't think 8lbs 10 oz sounds that big at a week and a half past due. My son was the same at a day early and I just thought healthy!
 

·
Registered
Joined
·
1,618 Posts
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>mtnmoonmama</strong> <a href="/community/forum/post/14716578"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">I agree. But, I don't think 8lbs 10 oz sounds that big at a week and a half past due. My son was the same at a day early and I just thought healthy!</div>
</td>
</tr></table></div>
I thought "average" for girls was just under 7.5 pounds at 40 weeks and boys were just over 7.5 pounds? Going by that, a pound over a week later would be on the bigger side and your DS would have been "big" - but neither is like super huge baby or anything.
 

·
Registered
Joined
·
334 Posts
Discussion Starter · #8 ·
my daughter was supposed to have been a week and a half past due....honestly I dont think she was. I guess this is a side note, but i was induced and never dialated even a little bit in 24 hours w/ pit and having my water broken. I dont think she was "fully baked" and thats why I didnt dialate. They tried to feed me a line that she was too big for my body so thats why I didnt dialate. . . BS. lol<br><br>
Anyway, w/ this little guy i dont have a LMP to go off of to guess a date. I do *THINK* I know when I ovulated and it does coincide with the 2-5 date, but since I hadnt had a period since 2-10-08 anything is possible i suppose. Is there any error rate with early ultrasounds? I know they are the most accurate, but can they be off as well? anyone know by how much? just curiousity.
 

·
Registered
Joined
·
1,618 Posts
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>SummerLynn</strong> <a href="/community/forum/post/14717602"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">Anyway, w/ this little guy i dont have a LMP to go off of to guess a date. I do *THINK* I know when I ovulated and it does coincide with the 2-5 date, but since I hadnt had a period since 2-10-08 anything is possible i suppose. Is there any error rate with early ultrasounds? I know they are the most accurate, but can they be off as well? anyone know by how much? just curiousity.</div>
</td>
</tr></table></div>
My OB says +/- 3 days for the early first trimester ones...so as long as you are measuring within 3 days of the date of your LMP (if you know it) they go by your LMP.
 
1 - 9 of 9 Posts
Top