Pregnancy 35+ Community
25 weeks baby measurements looks 1 week behind
About This Community:

Our Pregnancy Support Forum is for women 35 years and older. This is where you can communicate with other women who share your interest in pregnancy and childbirth issues. This forum is not monitored by medical professionals.

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

25 weeks baby measurements looks 1 week behind

Had an ultrasound yesterday. My babys measurements looked 1 week behind. AC measurement was at 4 percentile. I am 25 weeks. anyone experienced this?
Related Discussions
5 Comments Post a Comment
Blank
1039620_tn?1272597604
I would try not to worry too much about the one week difference. The farther along you are the more ultrasounds can be off, sometimes up to two weeks, unlike earlier ones that are only off by a few days. As for the AC (abdominal circumference) percentage, it can be smaller if you and your husband are smaller people, which will mean that your baby may also be smaller. It's a little early now to determine, but if you look at it like this, a normal 7lb baby is the 50 percentile, and 6lb baby is 25 percentile and a 8lb baby is 75 percentile. You need to remember since you are only at 25 weeks, a LOT can change before your due date. The baby goes through many more growth spurts before then and all these numbers can change dramatically. Being only a week behind from the ultrasound is really nothing to worry about, so try and relax, I know, easier said than done. :)
Blank
480331_tn?1310407129
Both my babies measured ahead by 2wks..don't put too much merit into this,  u/s can really only "guesstimate" approximated weight/length.  Your baby will be just fine : )
Blank
377493_tn?1356505749
U/S are not accurate for dating this far along.  My little guy has been measuring ahead since end of first trimester as well.  No cause for worry at all....you might find he stays a bit behind, or suddenly has a growth spurt and shoots ahead...or back and forth.  He is normal!  
Blank
349463_tn?1333575176
I wouldn't worry at all. My baby would go a week ahead or behind several times while I was pregnant.
Blank
951946_tn?1263568983
I concur with everybody that the u/s measurements are not as spot-on as you might think. They are really estimates. In fact, 3rd trimester u/s are notorious for misjudging the size of the baby by up to TWO POUNDS in either direction!

Did they measure your uterus from the outside with a measuring tape? My midwife says that the measurements roughly correspond with 1 cm per week. So at 25 weeks, if you're between say 23cm and 27cm on that measurement, you're fine. :)
Blank
Post a Comment
To
Blank
Weight Tracker
Weight Tracker
Start Tracking Now
Pregnancy 35+ Community Resources
RSS Expert Activity
469720_tn?1388149949
Blank
Abdominal Aortic Aneurysm-treatable... Blank
Oct 04 by Lee Kirksey, MDBlank
242532_tn?1269553979
Blank
The 3 Essentials to Ending Emotiona...
Sep 18 by Roger Gould, M.D.Blank
242532_tn?1269553979
Blank
Control Emotional Eating with this ...
Sep 04 by Roger Gould, M.D.Blank
Top Pregnancy Answerers
Avatar_f_tn
Blank
feg90
8765505_tn?1399768536
Blank
ash060115
Ireland
Avatar_f_tn
Blank
libellula
6674791_tn?1396218750
Blank
mckaylas_momma1018
San Tan Valley, AZ
7721203_tn?1400808130
Blank
OctoberMommy2014
SC
Avatar_f_tn
Blank
OctoberBaby5