If you know (or are pretty certain about) your o date, is 40 weeks it?

Re: If you know (or are pretty certain about) your o date, is 40 weeks it?

• mirdamae03 member

  January 2011

  barcelonagirl:

  I guess this is more of a question for 2nd time moms, or those who've already had their babies and are still lurking. 

  I know you're considered "full term" at 37 weeks but that it's perfectly normal not to give birth until 41/42 weeks.

  Is the reason for the range due to conception dates based on lmp (which may not be accuarate due to variations in cycle length) or is it the simpler explanation of different babies take longer or shorter to cook?

  Just wondering....

  This.

  

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• chicsub member

  January 2011

  Yep, it's just a range and babies don't pop out at the magical 40w point.  I charted and had DS 6 days after EDD, but for a first timer that's pretty average.

  DS born via c/s 11/08 and med-free GD VBAC DD 3/11!

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• iris427 member

  January 2011

  I think both are true.

  Different babies take different amounts of time to cook.

  But I have heard that early u/s dating has led to fewer postdates pregnancies, suggesting that a lot of "postdates" pregnancies were simply cases where the woman had O'd later than they thought.  

  
  

  
  

  Big sister {September 2008} Sweet boy {April 2011} Fuzzy Bundle {ETA July 2014}
  

  
  

  
  

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• barcelonagirl member

  January 2011

  Darn it!  I was hoping to find some certainty in all this LOL..... 

  Fine Baby. Come when you will

  

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• staycee member

  January 2011

  FWIW,   Kaiser SoCal considers 38w as the new "full term".  

  
  TTC#1 Chart
  TTC#2 Chart
  IUI #1 - #4 (repronex trigger) = BFN
  IUI#5 on 10/28/2008 ** BFP 11/10/08 ** EDD 07/21/09 *** It's a GIRL (07/14/09)
  med/treatment free BFP 06/28/10. EDD 03/05/11 *** GIRL #2 (02/23/11)
  beta#1 @ 17dpo = 1296 .... beta#2 @ 19dpo = 3034
  
  
  it's the Bug and Baby Belle!

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• NickelC35

  January 2011

  chicsub:

  Yep, it's just a range and babies don't pop out at the magical 40w point.  I charted and had DS 6 days after EDD, but for a first timer that's pretty average.

  This was my exact experience too with DD.  I knew the exact day I O'd, and ended up being induced 6 days after my EDD.

  

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• LucyGoosey81 member

  January 2011

  Mostly that some babies take longer/shorter to cook.  DS was born at 39w1d (my water broke).  He wasn't able to regulate his temperature and was readmitted to the hospital at 5-days-old and was put in an isolette.  The answer that Children's ended up giving us was that he probably had a 42 week gestation, and in that event, he was 3 weeks early, which explained everything.
  

  

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