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How do you all count how far along you are?


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  #1  
November 27th, 2011, 11:40 AM
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I posted a previous question about tickers, but I'm realizing that I probably should instead be asking how everybody counts pregnancy weeks and fetal development.
Do you base your pregnancy length on LMP (i.e., you count/say you're 12 weeks along even though technically the fetus is only 10 weeks along) or do you base it on the actual "age" of the fetus?

The tickers made me realize that it's common to base it on the generic EDD calculations, which - regardless of LMP or date of conception - count you as 2 weeks along already on the estimated date of conception. (Which is why my ticker says I'm 9 weeks along even though technically my peanut has only existed for 7 weeks).
I never really thought about it during my first pregnancy, but now I'm wondering... At what point do I then enter the second trimester (and when can I expect my nausea to disappear!) - when my ticker says 13 weeks, or when my peanut has existed for 13 weeks??
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  #2  
November 27th, 2011, 12:47 PM
PuppyLove22's Avatar Mega Super Mommy
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When you ticker says 13 weeks. I very rarely find anyone that goes by actual date of conception. So I am 13 weeks pregnant, but baby has only been developing for 11 weeks.
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  #3  
November 27th, 2011, 01:18 PM
MoMMy2*Vicky.Hayd.and.K*'s Avatar Expecting #4 :)
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I go by the due date that I figured by conception! Which was sept 20th initial since I know I ovulated late. But at my U/S I was a day ahead and looks like instead of using my LMP they will use the new date they measured me by which puts me due June 11th instead of 12th (as per ovulating the 20th) or may 31st (LMP)
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  #4  
November 27th, 2011, 01:55 PM
PuppyLove22's Avatar Mega Super Mommy
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I think, and I'm not positive, but I think she means minus the 2 weeks before conception. Like even though we are 13 weeks pregnant by what the Dr. says, the fetus has only been growing for 11 weeks...does that make sense?

Facts of Life: Chapter 22: Natural Family Planning: Fertilization Age and Gestational Age
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  #5  
November 27th, 2011, 02:31 PM
Amazona's Avatar Platinum Supermommy
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Pregnancies are counted in weeks from the last day of your menstrual period (LMP).
If you positively know you ovulated (hence, conceived) way later than the average woman (13-16 days), then you can adjust the EDD date but it always includes the 2 weeks prior to ovulation.
That is how your Dr. will count and measure your pregnancy, not by age of the fetus.
Same with ultrasounds. They will refer in weeks and those are "pregnancy weeks", not fetus age (ex. 12 weeks is a 10 weeks fetus but they will say you are measuring 12 weeks)

And the weeks to enter the 2nd trimester are debatable but I count from 13 weeks as Kristi
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  #6  
November 27th, 2011, 02:38 PM
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Ditto to Paola and Kristi - I count from LMP, although my "o" date is a little later, so I actually go by my due date from the u/s, which counts 2 weeks prior to ovulation. There isn't really anyone out there that counts fetus age that I am aware of either.
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  #7  
November 27th, 2011, 02:39 PM
LIZZYI's Avatar Mega Super Mommy
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Quote:
Originally Posted by Amazona View Post
Pregnancies are counted in weeks from the last day of your menstrual period (LMP).
If you positively know you ovulated (hence, conceived) way later than the average woman (13-16 days), then you can adjust the EDD date but it always includes the 2 weeks prior to ovulation.
That is how your Dr. will count and measure your pregnancy, not by age of the fetus.
Same with ultrasounds. They will refer in weeks and those are "pregnancy weeks", not fetus age (ex. 12 weeks is a 10 weeks fetus but they will say you are measuring 12 weeks)

And the weeks to enter the 2nd trimester are debatable but I count from 13 weeks as Kristi

Perfectly said!! All MDs count those first 2 weeks even though technically you werent pregnant yet. With that said....I'm pretty sure most sites/books also do it this way so the developement you are reading about is accurate to what is going on that week.
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  #8  
November 27th, 2011, 02:42 PM
Crystal713's Avatar Platinum Supermommy
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I go by LMP because that is what everything is based on. Morning sickness is "supposed" to end around your second trimester at 13 weeks from LMP.
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  #9  
November 27th, 2011, 05:00 PM
wavrunnr's Avatar Mega Super Mommy
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I based my ticker on what my ultrasounds have said is the 'age' of my baby....not my lmp
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  #10  
November 27th, 2011, 07:30 PM
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Thanks everyone!!
Now I'm relieved because that means I hopefully get relief from the awful nausea two weeks earlier than I thought - LOL!
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