or Connect
Mothering › Mothering Forums › Mom › Parenting › Parenting Multiples › the gap widens- weight difference in twins?
New Posts  All Forums:Forum Nav:

the gap widens- weight difference in twins?

post #1 of 18
Thread Starter 
my girls are 3.5 weeks old, and were born at 5 lbs 9 oz and 6 lbs 12 oz (so 1 lb 3 oz different)

they both lost some weight in the first week as expected- they went down to 5 lbs and 6 lbs 5 oz I think.

At 2 weeks things were going awesome- weights were 5 lbs 14 oz and 7 lbs 5 oz.

Today i weighed them myself and they are still gaining well at 6 lbs 5 oz and 8 lbs 5 oz but wow they are 2 lbs apart now!!

why would this be happening? when might they be closer to the same weight? I am not worried at all as they are clearly both very healthy but very curious as to other's experiences with this! Is there any chance they could still be mz? Or does this completely different weight gain pattern indicate they are probably frat.?

Thanks!!
post #2 of 18
Gosh, only speaking for my 'n of 1' here, but my boys were exactly 1# different at birth (4' 15" and 5' 15") and looked quite different at the time because of it. But, within the first month, Eli caught up to Sam and since then there has not been more than 1 oz difference between them every time they've been weighed (each month, or so)--which, coincidentally was the weight difference that the notoriously inaccurate u/s detected during my pregnancy. Since Eli caught up, it seems pretty apparent to me and most others that they are mz.
I guess I would probably wait and see with your girls since it's still pretty early (the smaller one might just have a growth spurt waiting to happen!)...
post #3 of 18
My twins had TTTS, were born at 3.11 and 5.10 and have always been at least a few lbs different. They are about 5lbs different now. I have a hard time convincing anyone that they're MZ but they are.
post #4 of 18
Mine are frat (boy/girl), but were almost 2 lbs diff at birth (7lb 10oz and 5lb 12 oz) and are now at 8 mo, more like 3.5 diff in weight. Our gap keeps widening too.
post #5 of 18
mine were 5'12" and 7'12" at birth and have grown closer to be almost the same today at 4 mos(within 1 lb and 1/2 inch), though i am fairly certain they are fraternal.
post #6 of 18
mine were 15oz different at birth which quickly became a steady 3 lb difference and now at 10 months is a whopping 6 lb difference! they're dz though, as far as i can tell.
post #7 of 18
My sister-in-law has adopted twin boys. She told me they didn't start to be the same size and look alike until age two!
Now they are 17 yrs and I can't tell them apart except for one has a scar on his cheek, so I'm guessing they are mz.
post #8 of 18
Granted my twins are b/g. DS is 35lbs and in 4T clothing, DD is 22lb and still in 18mo. They are two years and 7mo old.

DD came first at 6lb 2oz, DS came at 8lb 4oz.
post #9 of 18
My twins are MZ. They where 3#3oz and 4#11oz at birth. Now at eight months there is almost a 4# difference. They don't look identical because of the it. They are both totally healthy but the little one doesn't eat as much and he his much more active. Plus the smaller one had colic for the first 4 months so he didn't gain as fast as his brother. I think it is just different personalities. Someone told me that if they don't even out by two yrs old then they probably won't. Personally I was glad they weren't exactly alike, I didn't know how I was going to tell infants apart. :
post #10 of 18
My girls have never been the same weight. Jane weighed 4 1/2lbs and Jennifer weighed 5lbs 6oz, now Jane is 95lbs and Jennifer is 103lbs. So you're twins might come close to the same weght or they might just go their own way
post #11 of 18
My boys were 7 lbs 12 oz. and 6 lbs 3 oz. at birth, and now there is an 8-9 lb difference. They are fraternal, but have been this way for years. (They're 6 now). So as long as they are developing normally and eating, I don't imagine its an issue.
post #12 of 18
Mine were 7lb 15 oz and 8lb 2oz at birth (and are mz) and the bigger of them got to be almost 1lb bigger than his brother but now the smaller one weighs 1lb more than his previously larger brother at 17 months. Miles pretty much gained no weight once he started chowing down on solids and Byron has remained boob obssesed I don't think it really rules them out for being mz, it seems like a lot of mz twins have a couple pound weight differences.
post #13 of 18
I read something a long time ago that said that mz twins were more likely to have large weight differences at birth and as newborns than dz.

My girls had a 3 oz difference at birth and were very close to each other for the longest time. They are 6 now and at most 1 1/2 lbs and 1/2" apart in size. And they are most definitely fraternal. If they aren't dressed the same people tend to assume dd1 and dd3 are the twins.
post #14 of 18
Here are my children's weights:

Birth: DD 5lbs12oz
DS 6lbs15oz

2 months: DD 10lbs
DS 12lbs10oz

4 months: DD 12lbs
DS 15lbs

6 months: DD 15lbs
DS 19lbs10oz

9 months: DD 17lbs7oz
DS 22lbs!!!

As you can see my son has always been considerably larger. DD is a petite little thing, but she's had steady gains and is hitting all of the usual milestones so I'm not worried about it.
post #15 of 18
My twin girls were born just about the same as yours 5lbs 8oz and 7 lbs. They are Identical and I believe they had slight TTTS, but none of the docs admitted they missed it. They are 3 yrs. and still the 7 lb one is 2 lbs more and 1 inch taller than the 5 lb 8oz. The Ped said they will always be like this. That's pretty much how we tell them apart, you can tell one is bigger.
post #16 of 18
di/di boy twins here. They were 4 lbs 11 oz and 5 lbs 12 oz. At 4 months, they're 12 lbs 5 oz and 14 lbs 11 oz, so they have more than a 2 lb difference. I'm not very worried since they're growing well.


post #17 of 18
My boys have always been very different in weights.

Hunter 4lbs 6oz at birth
Kolton 3lbs 14oz at birth

They stayed about 1/2lb apart til about 4 months when they moved to lb apart, and now at 14 months Hunter weighs in at 24lbs and Kolton weighs in at 22lbs. Hunter is also a full 2 inches taller then Kolton is too.
post #18 of 18
Thread Starter 
thanks everyone for your stories... they are still exactly 2 lbs apart..

its driving me nuts not knowing if they are id or frat... i want a clue!
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Parenting Multiples
Mothering › Mothering Forums › Mom › Parenting › Parenting Multiples › the gap widens- weight difference in twins?