Gestational Weights Via Ultrasound

The following is a random, unscientific sampling of Twinstuff moms reporting on the gestational weights of their twins in ultrasound measurements during pregnancy. Please bear in mind that the gestational weight estimates may vary based on external factors and that this chart is not designed to be used as a recommended weight range for your twins. For 16 months, we collected ultrasound weights from mothers here at Twinstuff. Those weights were then calculated to find the average weight for that week. Also listed are the lowest and highest weights recorded for that ultrasound period. We hope you find this chart helpful!
Gestational Weight Chart for Twins
Gestational Week Baby A Baby B Low Weight/High Weight Number of ParticipantsWeek 15 6 oz. 5 oz. 3 oz./7 oz. 3Week 16 6 oz. 6 oz. 4 oz./9 oz. 14Week 17 8 oz. 8 oz. 7 oz./10 oz. 7Week 18 8 oz. 8 oz. 6 oz./12 oz 24Week 19 10 oz. 10 oz. 7 oz./13 oz. 21Week 20 12 oz. 12 oz. 10 oz./1 lb. 36Week 21 15 oz. 15 oz. 10 oz./1 lb. 2 oz. 18Week 22 1 lb. 1 oz. 1 lb. 2 oz. 11 oz./1 lb. 7 oz. 20Week 23 1 lb. 4 oz. 1 lb. 4 oz. 13 oz./1 lb. 12 oz. 27Week 24 1 lb. 8 oz. 1 lb. 8 oz. 14 oz./1 lb. 15 oz. 43Week 25 1 lb. 12 oz. 1 lb. 14 oz. 1 lb. 2 oz./2 lbs. 3 oz. 26Week 26 2 lbs. 2 lbs. 1 oz. 1 lb. 6 oz./ 2 lbs. 8 oz. 29Week 27 2 lbs. 6 oz. 2 lbs. 6 oz. 1 lb. 12 oz./ 3 lbs. 8 oz. 29Week 28 2 lbs. 11 oz. 2 lbs. 12 oz. 2 lbs. 1 oz./ 4lbs. 15 oz. 46Week 29 2 lbs. 15 oz. 3 lbs. 2 lbs. 3 oz./ 3 lbs. 9 oz. 25Week 30 3 lbs. 8 oz. 3 lbs. 8 oz. 2 lbs. 13 oz./ 4 lbs. 8 oz. 25Week 31 3 lbs. 12 oz. 3 lbs. 14 oz. 2 lbs. 14 oz./ 6 lbs. 4 oz. 26Week 32 4 lbs. 3 oz. 4 lbs. 3 oz. 2 lbs. 13 oz./ 6 lbs. 44Week 33 4 lbs. 13 oz. 4 lbs. 12 oz. 3 lbs. 11 oz./ 6 lbs. 9 oz. 34Week 34 5 lbs. 2 oz. 5 lbs. 1 oz. 4 lbs. 1 oz./ 6 lbs. 1 oz. 22Week 35 5 lbs. 11 oz. 5 lbs. 9 oz. 3 lbs. 12 oz./ 8 lbs. 5 oz. 20Week 36 5 lbs. 9 oz. 6 lbs. 3 oz. 4 lbs. 11 oz./ 7 lbs. 2 oz. 15Week 37 6 lbs. 7 oz. 6 lbs. 5 oz. 5 lbs. 3 oz./ 7 lbs. 15 oz. 9

 

Wow!! I was right on target at my 20 wk U/S. Both boys weighed in at 12 oz each!! Great info!!

 

QUOTE(2boys07 @ Jun 28 2007, 10:09 AM) [snapback]310358[/snapback]
Wow!! I was right on target at my 20 wk U/S. Both boys weighed in at 12 oz each!! Great info!!


My b/g twins were measuring 5 lb 9 oz and 5lb 8oz at my 34 week u/s.

 

28 weeks, baby A (boy) 2lbs 7oz baby b (girl) took the lead at 2 lbs 14 oz. starting to worry about my little man!

 

That's really neat to have. I have my 26th week US next week, I'm interested to see where they will fall.

 

At my 32 week u/s:

Baby A 4 lbs 14 oz
Baby B 5 lbs 4 oz

 

QUOTE(twinreverb @ Jan 23 2008, 12:32 AM) [snapback]585200[/snapback]
28 weeks, baby A (boy) 2lbs 7oz baby b (girl) took the lead at 2 lbs 14 oz. starting to worry about my little man!



Those weights sound awesome!!!

 

@@ my 34 week ultrasound.. baby a is 5lbs5oz && baby b is 4lbs14oz

 

I was pretty close target - slightly over, I guess. Both girls were est. 9oz at my 18w appt - they were only 2 or 4 grams apart!

 

It is exciting to see that at 21 weeks my twins were both right on. They were both 1lb, 2oz. I am looking forward to finding out how much they weigh next week at 26 weeks. Hard to believe they could both be over 2lbs, then again I look at my belly and maybe I can believe it!!!

 

interesting

 

@@ 36 weeks ` twin a is 6lb10oz && twin b is 6lb4oz.. deff big babes!!!

 

Last week's u/s (start of 33 week) baby A was 4 lbs. 4 oz. & baby B was 3 lbs. 12 oz. They seem like they are right on track. However, I think they went on a growth spurt this weekend because I have gotten much BIGGER in the last few days.

 

My babies are right on track for 23 weeks. 1lb 5 oz and 1lb 4oz. Great!

 

I m getting worried, had my 32 week ultrasound today and baby a is only 3lbs.1oz. and baby b is 3lbs. 10oz. and there is a decrease of fluid around baby b

 

At 34.2weeks baby A weighed 5.7 lbs (2.6kg) and baby B weighed 5.3 lbs (2.4kg)!

 

Just to report that our ultrasound weights given hours before birth were way off . . . they estimated weights about 1/2 pound higher for each of them, which was pretty significant given that they were born at 1lb 15oz and 2lb 6oz, at 27.4 weeks.

-Rachel

 

Do the doctors just give you the weights? At my 20w2d(i think) u/s all they said is one measures 19w5d and they other was barely 18w. Is that what you all are talking about or do they have a way to measure them than get the weight. I am confused....I have an u/s with Peri in 2 weeks so i will see if they can give me more info...

 

<img src="http://www.twinstuff.com/forum/public/style_emoticons/<#EMO_DIR#>/banana.gif" style="vertical-align:middle" emoid=":banana:" border="0" alt="banana.gif" /> <b></b>


MIne were baby a 8 ounce and baby b 9 ounce.
my 23 week u/s is on the 23rd may so lets see how they grow then!!!!
I am 184 lbs!! and all the weight is just on my TUMMY>> no where else! people think what's happening?!! but i am happy!!!



take care
Shwets

 

@28 weeks both babies measured 3lbs 8oz

 

Mine have been really close to the average weights so far. This is cool to see!

 

This is neat to see. My last ultrasound at 27 wks. showed them weighing about 3 lbs. each, which is big. I'm glad that they are measuring big, but then again I keep thinking, what if I go to 38-39 wks! I'll be huge.

 

I had my 16 weeks u/s and Baby as was 5oz and Baby B was 6 oz

 

Just wanted to add that my last growth scan I had we were told that the boys weighed 5.10 and 5.12 at 33 weeks. Right after that appt. I walked over to the eval room for my NST, was diagnosed with pre-eclampsia and was delivered via c/s within 3 hours. The boys weighed 5.8 and 5.9. Isn't it amazing that the estimate was that close. I thought to myslef right before the c/s that it would be cool to see how accurate the measurements were and I was pleasantly surprised. Just wanted to share. :banana:

 

I had an u/s the day before my girls were born at 37w5d and it said they were 7#7 and 5#5. Turned out they were 7#9 and 5#3. It's interesting to me that the average for 34 weekers was around what Sabrina was at almost 38 weeks, because even though she was older, she had a lot of feeding problems like I've heard are common for being about a month earlier than that. She'd basically stopped growing the last month (I think the u/s a month earlier showed her at 5#1), and maybe slowed in developing, too? She's still tiny, but healthy and great. Anyway, interesting observations from this unscientific poll!

 

My 20 wk results were 9oz for Baby A and 12 oz for Baby B. One on target and one a little small, but we already knew that. This was neat to look at

 

25w2d Baby A measured 1 lb and Baby B measured 1 lb 11 oz.

 

at my 20 weeks level 2 u/s both babies were 13 oz.

 

:bump:

 

at 34 weeks the u/s had my son at 5 lbs 8 oz and my daughter at 4 lbs 8 oz...when I delivered at 36 weeks (2 weeks later) DS was 4 lb 8 oz and DD was 3 lb 8 oz...they were a whole pound off!

 

It looks like my boys are closer to the 29 week range. It's good to know that they are doing so well and growing right on track. Makes me feel better.

 

37 weeks 2 days - 6.5 lbs each! yay!

 

Amazing....at 22wk Baby A 1lb, Baby B 1lb 2oz, hopefully we keep staying right on track!

 

24 weeks:
Baby A - vertex and weight 796gm( 1lb10oz) 79%
Baby B - breach and weight 703gm ( 1lb8oz) 62%

 

Just get back from 27weeks growth check
both babies 2lb9oz