I'm amazed at some of the answers here.
There is no way to determine the exact date of conception. This is true whether you use an online calculator, ask your doctor at the ultrasound, or were charting your own cycles to determine when you ovulated.
Even if you were charting, determining the date of ovulation is really a matter of "best guessing." The only way you can determine the date of ovulation with one hundred percent accuracy/certainty would be if you were having daily ultrasounds and on, say, Monday the doctor did an ultrasound and saw your follicle about to rupture, and on Tuesday did an ultrasound and saw that it had ruptured. (And all you would know that way is that ovulation occurred between the two ultrasounds....so could have been Monday OR Tuesday.) Make sense? All the other methods are going to provide guesses. Good guesses, to be sure, but it's not exact.
So as the other people here posted, conception probably occurred on or around December 11. But that calculation assumes things about when in your cycle you ovulate that may or may not be true. (The answers here that give a date in late November: that's referring to the estimation of your last menstrual period before you conceived. And that assumes a 28 day cycle with ovulation on day 14.)
To address a couple of answers given:
1) ovulation does NOT occur over a period of days. I've seen this a few times on these boards and it makes me want to pull my hair out. Ovulation happens once, and quickly; when a mature follicle ruptures, releasing the egg, the egg lives for only a matter of hours. It's the sperm, not the egg, that can survive for a while (in the right environment sperm can live for as long as 5 days). Incidentally, this is another confusing factor when you want to figure out when conception occurred. For example, you might say "huh, my husband was out of town on Dec. 11...he left town on Dec. 9 so how could conception have occurred on the 11th?" But you could have had sex on the 8th....and ovulated on the 11th, with conception occurring at that latter time.
2) A human pregnancy is approximately 40 weeks long -- not 42. Actually, it's roughly 40 weeks counting back to the last menstrual period. So it's really only 38 weeks from conception to an estimated due date. (When your doctor says "you're 8 weeks pregnant," for example, it actually means that conception is thought to have occurred about 6 weeks ago. Nutty and annoying. But, there it is.)
Congratulations on your pregnancy and best of luck!
2007-02-05 05:16:22
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answer #1
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answered by ljb 6
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The 40 weeks actually includes your last period, so counting back from your due date to when you conceived (you concieve about 2 weeks after your period) would only be 38 weeks. Going by the 40 week count, yes you were two weeks pregnant on 12/25, you are considered 2 weeks pregnant at the time you conceive which is why you are 4 weeks pregnant when you can find out even though the baby is actually only 2 weeks old at that point. Hopefully I didn't just confuse you more :)
2016-05-24 18:28:20
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answer #2
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answered by ? 4
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There are 208 days until your due date on September 02, 2007.
You are 72 days pregnant.
You are 2.4 months pregnant.
You are in your 3rd month of pregnancy. (huh?)
Your 1st trimester: November 26, 2006 to February 24, 2007. (0 - 12 weeks)
Your 2nd trimester: February 25, 2007 to June 09, 2007. (13 - 27 weeks)
Your 3rd trimester: June 10, 2007 to September 02, 2007. (28 - 40 weeks)
So you would have conceived on November 26th
the baby makes plenty of movements, and can wave arms and legs, but you won't feel anything for several weeks yet.
The outlines of tiny fingers and toes are just visible, though there are no fully-formed nails yet, and the digits are still fused together.
The external genitals of the baby are visible - before now, there has been no clear difference between boys and girls. the baby can now wee, and the urine is discharged into the amniotic fluid surrounding it.
You may have gained a little weight already. Average weight gain during pregnancy is about 28lbs(13kgs), but most of that is gained in the second and third trimesters.
2007-02-05 04:54:53
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answer #3
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answered by Anonymous
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December 10, 11, 12 right around there. I was due on September 3rd and I conceived on December 11, 2005! Congrats, mine was born on August 17th though!!!! Good Luck!!!!!!
2007-02-05 04:50:32
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answer #4
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answered by kaelynnsmommy 3
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there is no way to know. different sperm live different lenghts of time. you could have had sex one day and ovulated the next and got fertilized by sperm that lived until that day. There's really no way of knowing. And gestation is actually bout 9 1/2 months, not 9. Then they add 2 weeks and say your pregnancy started the first day of your last menstral cycle, so you are pregnancy for 40 weeks or 10 months, not 9.
2007-02-05 04:53:17
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answer #5
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answered by april_hwth 4
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Knowing your due date, wouldn't give an EXACT date im afraid. Ovulation can happen over a period of time, not really just one day. So has you see from the previous date, no1 will know other than your and your husband...
2007-02-05 04:50:26
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answer #6
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answered by ஐ♥PinkBoo - TTC #1♥ஐ 5
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Beginning of December.
2007-02-05 10:54:42
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answer #7
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answered by mommy_2_liam 7
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December 11. You're 8 weeks pregnant.
2007-02-05 04:49:58
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answer #8
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answered by Heather Y 7
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November 12th 2006 I say this because it is a 42 week cycle. they say its only 9 months long but if you go by the weeks it is actually 10 months! So November 12th. Also if you want a more accurate anwser you doctor can tell you.
2007-02-05 04:52:39
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answer #9
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answered by The H 3
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your ob gyn should be able to tell u that or if u go to americanbaby.com u can enter the due date and then it will give you date of conception no one can tell you exactly because i can very by a couple of days unlesss u log the days you had intercourse you might be able to narrow it down to the exact date
2007-02-05 04:50:57
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answer #10
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answered by Anonymous
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