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If You Don't Remeber When Your Last Period Was How.

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If someone didn't remeber when there last period was, then how do they determine your do date.. Like when they do the measurements I know thats one way of telling but do they deduct 2 weeks form that to determine the day you were concieved.. B/c I know that everything is around 2 weeks ahead during pregnancy.. So I was just woundering how they would do that.. I know when my last period was it was the 19th of dec which would put me at 19 weeks and thats what my measurements were but I believe I concieved 2 weeks after that on the 31 of dec. So I just don't understand why they add the 2 weeks to everything b/c I was thinking my baby was 17 weeks b/c thats when I think I concieved... But I guess when we concieve were already 2 weeks preggo. So I was jsut woundering how they do that when someone doesn't know when there last period was???
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replied May 8th, 2005
For the life of me I couldn't remember when my last period was. So I went to the doctor and they did and ultrasound on me, which was how I found out that at that time I was 6 weeks and 4 days. Besides that I don't know any other way, unless you really think hard of the last time you had your period. Hope that helps
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replied May 8th, 2005
Experienced User
hugmelly wrote:
for the life of me I couldn't remember when my last period was. So I went to the doctor and they did and ultrasound on me, which was how I found out that at that time I was 6 weeks and 4 days. Besides that I don't know any other way, unless you really think hard of the last time you had your period. Hope that helps
so that means that you concived about 4 weeks and 4 days ago... Right? B/c they add 2 weeks to everything... My measurements were at 19 weeks and 4 days and when I counted back it fell 4 days before my last period even started and when I asked why that was, I said what did I get preggo before my period or what and she said no you count back 2weeks to figure the date of conception.. I don't get it!!
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replied January 6th, 2010
i want to know when my last period
i wanted to know i dont remember the last time i came on it was an nov before the 23rd of nov i was on my period on my boyfriend birthday so i dont know when the last time i came on my period........i go by the name of twin
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