June 2011 Moms

Question about measurements

Have any of you gone in for your u/s and found that your baby was measuring at a size that didn't match up with any of the times you BDed?  This may be a dumb question because I know that it can take longer for some babies to make their way to the uterus or you may have BDed ahead of ovulation or something.

 I am just curious b/c DH and I only BDed 2 times last month when we conceived so I am relatively certain of the EDDs, unless you all have had different experiences. 

Sorry in advance if this doesn't make sense.

Re: Question about measurements

  • sperm can last up to 3 days or something like that.
    ~Chelsea~
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  • I am measuring 3 days behind what I thought and I was pretty sure of my timing.

  • imagecvl105:
    sperm can last up to 3 days or something like that.

    yep so you really have a bit of variation there. also note that early ultrasounds come with a +3 day.

    Once you get into the 2nd trimester it can be up to +a week!

    And a lot of times in the 3rd tri it will even be more than that .. like +1w5d as example. 

    Think about .. not all babies come out the same size! Every baby grows differently, the ultrasound measurements are just based upon an average :) 

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  • I was actually just wondering about that the other day.  It seemed odd that we would assume all babies grow at the exact same rate and then after we are born we are all so different.

    Thanks for the info!

  • Thanks for posting this, I was just replying to tdmd's post about her change in EDD.  I guess I never even thought of that before.  Now I'm really curious how they're going to date my pregnancy when I have the u/s on Friday!
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