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Is There Any Way The Sonogram Was Wrong?

1 posts on this thread and the last post was on September 25th, 2007 10:28 AM
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cat_eyed_witch - September 24th, 2007 11:08 AM
 [Original Post]

Before I found out I was pregnant, I was a complete and total idiot making many irresponsible and stupid choices... (this was a few years ago)

When I was informed I was pregnant, I had a sonogram performed on Aug. 8 which assessed the baby to be 8 wks and 5 d along...

Thing is, I have always been irregular, so they could not have used my menstrual cycle as an indicator of any kind...
and in the couple of months prior to finding out I was pregnant, I was drinking a LOT of alcohol, smoking many MANY cigarettes, using illegal narcotics, and basically not sleeping for days and days on end... After I discovered I was "not alone" in this body, I immediately changed my lifestyle and I pumped myself full of vitamins of all kinds and healthy living habits for the entire duration of my pregnancy.....

However, is there any way the first sonogram performed could have been wrong about how far along my child was? Could my behavior prior to finding out I was pregnant have slowed her growth so she appeared smaller than she really was?

I had a problem-free pregnancy and a healthy baby, but my initial EDD was Feb. 28 (or somewhere around there) and then later on when I had another sonogram done they changed it to almost 4 weeks sooner!!
In the end, my doctor just flat out told me he was going to induce labor on March 6, and they marked her GA as 39 wks, which would be according to the initial EDD...

So, any help figuring this out would be appreciated. :)

Chris1975 - September 25th, 2007 10:28 AM

Hey there....my OB told me the earlier you have an u/s dating, the more accurate it is. ..generally a 6-8 wk u/s wont be out by more than a week, while as by the time your about 24wks, you can be up to a mth out with the dating from an u/s. He said thats because of the way different babies grow at different rates with their growth spurts. So Id trust the EDD to be based on that first 8wk u/s....plus or minus a week :) Not sure about the baby developing slower that early on, but i dont think it would be that lagged at that early stage....i would think it would be more of a problem if you were dated later on in pregnancy and had continued that bad lifestyle. Think how many women out there smoke and drank before they found out they were preggos around same time as you. Maybe ask your dr? Good luck with everything!