Maternal & Child Community
Pregnant with Twins - One sac significantly smaller than the other
About This Community:

This patient support community is for discussions relating to breast feeding, childhood disease, colic, child discipline, immunization, lactation, newborn care, post partum depression, Sudden Infant Death Syndrome (SIDS), and special needs children.

Font Size:
A
A
A
Background:
Blank
Blank
Blank
Blank Blank

Pregnant with Twins - One sac significantly smaller than the other

I am 10 weeks pregnant with Twins not through IVF.  At 7 weeks I had my first sono and the doctor said that one sac is significantly smaller than the other but the babies were measuring the same size.  At 8 weeks I went back for a second sonogram.  On the screen on sac was as large as a grapefruit with the baby being a size of a peanut.  The smaller sac was about the size of a golf ball with little amniotic fluid...again the babies were measuring the same size.

My doctor told me that the smaller sac might not be a viable pregnancy and that we would see at week 11 if the baby produced more urine for fluid.  Also said it is possible for the bigger sac to crowd out the second sac and that baby would be absorbed by the body.

Is it common for sacs to be so different in size....what is the likelihood that it will be viable pregnancy.  
Related Discussions
7 Comments Post a Comment
Blank
220217 tn?1209683277
I am in the same boat but with triplets.  I am almost 8 weeks and one sac was quite a bit smaller - I'm guess it might be normal, but they did mention the chance of "disappearing twin syndrome" to me as well.  I guess we just have to wait which is horrible.  Good luck and keep me posted.
Blank
Avatar f tn
I'm also preg. w/twins, 17wks 5days today.  At 7 wks my doc. told me one of them was significantly smaller and probably wasn't viable.  Now they are both normal in size and very active.  I'm having a boy and a girl.  So good luck.
Blank
Avatar n tn
Same boat with the smaller sac. I am 8 weeks pregnant with triplets from IVF but only two embryos were put back---my smaller sac divided and carries identical twins. I'm in a wait-and-see pattern right now as there isn't much the docs can say at this point. I was told about the "vanishing twin" and I was also told that there have been cases where one fetus develops normally but just behind the other or others.
Blank
Avatar n tn
I am Pregnant with twins one baby is 2 weeks smaller than the other is that normal?
Blank
Avatar n tn
Good luck everyone I lost my twins.
Blank
Avatar n tn
im 22 weeks pregnant with twins i just had a utrason done and baby b is small but shes 14 oz. baby b is 1 lb im just a lil scard i know there babys that stop growing im praying "hopefully not my case"
Blank
Avatar f tn
My daughter is 10 weeks 1 day and she had slight bleeding cramping. doc said babys both active and strong heart beat. said one baby is smaller than other. But that can happen. said bleeding probably normal too. Good luck!
Blank
Post a Comment
To
Blank
Weight Tracker
Weight Tracker
Start Tracking Now
Maternal & Child Community Resources
RSS Expert Activity
233488 tn?1310696703
Blank
Marathon Running Done Over Many Yea...
05/15 by John C Hagan III, MD, FACS, FAAOBlank
233488 tn?1310696703
Blank
New Article on Multifocal IOL vs &q...
05/15 by John C Hagan III, MD, FACS, FAAOBlank
748543 tn?1463449675
Blank
TMJ/TMJ The Connection Between Teet...
01/15 by Hamidreza Nassery , DMD, FICOI, FAGD, FICCMOBlank
Top Children's Health Answerers
13167 tn?1327197724
Blank
Austin, TX
Avatar universal
Blank