Anyone who had an ultrasound around 37 weeks to estimate weight...

...what was the estimate, when did the baby come out, and how big was he/she?

I just had an ultrasound yesterday at 37 weeks and 3 days, and the estimate was 8 pounds, 10 ounces
My first was 9 pounds, 1 ounce at two days before my due date -- looks like this one is going to be much bigger. Ouch!

Message edited 11/20/2007 6:47:55 AM.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

From what I've seen personally & heard, those are not very accurate.

My 34 week sonogram had Joseph weighing 4lbs. He was born at 6lbs 7oz three days later.

They get the measurements by using the size of the femur, head circumference & length. I wish we were all measured that way.

Don't start panicking yet.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

I did with my first and at the end of my 36th week he measured around 7lbs. He was born the first day of my 37th week and was 7lbs 2 oz. But I hear they can be inaccurate so you never know. My SIL had on the day of her induction and it said over 11lbs and the baby was 8.5lbs.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

Not to scare you, but I had one at 37 weeks and was told the baby was over 8lbs. I was in tears! DD came one week late and she wound up being 9 lbs 7oz. I wound up havinga c section bc she didnt want to come out.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

DW had an ultrasound in the am, and gave birth that night. DS apparently lost over 2 lbs in only a few hours....

We didn't buy any tiny clothes because all the ultrasounds kept saying he would be a big baby...... he wasn't... he was under 6lbs, and the last ultrasound put him at over 8lbs.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

Mine was accurate, my SIL's was off by 2 lbs

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

Mine was good.. had 1 at 34 weeks saying both babies was 5 lbs... i delivered vag with twins and both babies were 5 lbs 4oz!!!! they were ident in everyway!

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

well at my last sono, they were saying my boys were weighing 7 pounds they actually weighed 5pound 13 oz, and 5 pounds 14 oz.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

Mine was pretty accurate. It was done at 37 wks & she was 7lbs 1 oz. & she was born at 7lbs 14 oz

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

Ive had a dual experience with this..With my eldest daughter they told a couple of days before she was born 5lbs 5oz-she was 7lbs 15oz!!!!! WAY OFF THERE...with the twins, one day before they were born, Twin A 5lbs 6oz-she was 5lbs, Twin B 4lbs 14oz-she was 4lbs 14oz...

DS was born at 37 weeks he weighed in at 7lbs 11oz...

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

Both my sonos late in pregnancies were both pretty accurate.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

My OB didn't do them b/c he said they really are inaccurate.

He did tell me that you tend to have bigger babies each time and it was true for me. Sarah was 7lbs 8oz and Andy was 8lbs 1oz.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

mine was accurate

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

All along my belly (when they take the tape measure) was a week to 2 behind. All my sono's (I had 3 and one at 36 weeks) all had her on the smaller side. My doc was convinced the most she would be was probably 7lbs. Well while I was pushing I kept thinking to myself it shouldn't be this hard to push out a small baby especially since DS was 8lbs. Well DD came into the world wieghing in at 8lbs13oz. We were all shocked and trying to figure out where she was hiding out inside me . With DS they were right on. At my 36 week sono with him he was around 7lbs and was born 3 weeks later at 8lbs.

I think it all depends on good the sono tech is and how much the baby is moving. If the baby is moving alot then it is harder to get an accurate measurement. Usually with subsequent pregnancies the weight goes up too with each child. Not in all cases but a lot. My Doc did tell me after DS that I would have no problem delivering a 9lb baby and she was right.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

I had a sonogram at 39 weeks and they said she was well over 7lbs and when she was born almost two weeks later she was 6lbs 14oz

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

My last sono was at 34 weeks, they estimated her to be almost 7lbs at that time. She was born at 35w1d and she was 6lb 13oz...pretty close I would say.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

I had a sono the day before he was born and they were only off by 2 oz.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

my growth sono was VERY ACCURATE...I had one at 37 weeks, 2 days and dd was estimated at 8lb, 3oz....I had her 12 days later and she was 9lb, 8oz

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

My dr said those sonos could be under or over by 2lbs. For me with ds #2 it was under (they said 9lbs something and he was 8.3lbs) with my second they messured while I was in the hosp before I had my c-sec and they were only off by an oz (they said 8.3 and he was 8.2)

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

I am having my 37 week one tomorrow and I am having the same concerns. Many people have told me that theirs were way off, but these are people who haven't had babies in the last year or two. I have one friend who had a baby a few weeks ago and hers was right on.

I am measuring big (both in the sono and my fundal height) and the doctor says the baby feels big when she is touching me. I tend to believe my sonos have been pretty accurate so far.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

Mine were right on. I had sonos every week from week 30 on. During week 37 he was estimated at almost 11pounds. He was born at week 38 at 11pounds 8oz.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

I think those sonograms are right on. I went for a sono a day before my due day and the baby measured 9 15 and she was born 9 14 1/2. Now i think thats pretty accurate.

Re: Anyone who had an ultrasound around 37 weeks to estimate weight...

Mine were right on - I believe the error of margin is something like +1 or -1 lb - but remember it also has to do with the skill of who is doing it.