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Doctor insights on: Is Conception Date Same As Ovulation Date

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If LMP and first trim scans all point to same EDD, is the conception date range accurate?

If LMP and first trim scans all point to same EDD, is the conception date range accurate?

Yes: If your dates and ultrasounds are consistent the estimated conception date should be reliable within a few days. Short of tracking ovulation with daily ultrasounds or one of the in vitro methods, that is the best we can do. ...Read more

Dr. Philip Chenette
1,830 Doctors shared insights

Ovulation (Definition)

Ovulation is the act of the ovary releasing the egg after it has been hormonally prepared, to be ...Read more


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Is my date of conception the same as ovulation date? If my dr said I conceived on either the 31-3 could my partner from the 28-29 be the dad?

Is my date of conception the same as ovulation date? If my dr said I conceived on either the 31-3 could my partner from the 28-29 be the dad?

Maybe: Conception dates have a margin or error. We can not usually be that exact when you are talking about a 2-3 day difference. Paternity testing after delivery will be needed ...Read more

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What does it mean when you have a day of ovulation but a different conception date? Wouldn't you conceive the day you ovulated?

What does it mean when you have a day of ovulation but a different conception date? Wouldn't you conceive the day you ovulated?

Not necessarily: Once you ovulate the egg needs to travel to and down the fallopian tube. The egg lives for about 24 hours so you could conceive the day after. Dating a pregnancy is never that precise though so typically we use the first day of your last period to figure out your due date. Remember that ...Read more

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How to calculate due date from conception date if positive ovulation test?

How to calculate due date from conception date if positive ovulation test?

U are due: 38 weeks from the conception date, your OB can show you on your ob's pregnancy wheel, and I am sure your OB will get an ultrasound for dating and viablity also. ...Read more

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If due date was june 3 based on LMP of aug 27, then it changed to may 31 after u/s, could this be bcuz I ovulated sooner? Conception date different?

If due date was june 3 based on LMP of aug 27, then it changed to may 31 after u/s, could this be bcuz I ovulated sooner? Conception date different?

Yes to both.: Is very common to have the due date changed based on the findings at ultrasound. It is often around a month off because it is frequently such that one does not ovulate when they thought they did, but actually ovulated the previous month or in fact a later month. So your findings are common and should be believed because the early ultrasound is extremely accurate. ...Read more

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Lmp was 08/02 or so.. Dr says my conception date is 18th (i had unprot. Sex this day) but what if I ovulated early. Would gest age show this on us?

Lmp was 08/02 or so.. Dr says my conception date is 18th (i had unprot. Sex this day) but what if I ovulated early. Would gest age show this on us?

Life is not exact: All dates are estimates, so none of them are exact. Estimates can be a week early or a week later, which doesn't matter in almost all cases (because the woman is trying to have a baby with just one man). If there is more than one man, she should always separate them by two weeks, which allows the estimated dates to work pretty well. ...Read more

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Lmp was 4-27. I was given 2 due dates...2/17 on june 23 & 2/5 given on 8/12. What is my likely conception date range? Late ovulation?

Lmp was 4-27. I was given 2 due dates...2/17 on june 23 & 2/5 given on 8/12. What is my likely conception date range? Late ovulation?

By dates 5/2: I am not sure what the 1st due date was based on because by your dates (LMP) you would be due on 2/5 or 2/6. If the 1st due date was based on an ultrasound it is very reliable that early. Conception probably occured between 5/6 and 5/17. ...Read more

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If your early dating ultrasound shows that my conception date is 18 days after my lmp, does that mean I ovulate late?

If your early dating ultrasound shows that my conception date is 18 days after my lmp, does that mean I ovulate late?

You ovulate when: Your body decides it is right for you. That might be a day or 2 later than what is called average. But, if your cycle is a day or 2 more than the average of 28 days, that makes sense. Most women ovulate approximately 14 days before the first day of their next menses. ...Read more

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My ovulation date was August 11 and my conception date was August 13 I had sex on the August 7 and August 9 with my bf and August 8 and 12 with another partner me and my boyfriend was broke up at the time who do you think the possible father is PLEASE giv

My ovulation date was August 11 and my conception date was August 13 I had sex on the August 7 and August 9 with my bf and August 8 and 12 with another partner me and my boyfriend was broke up at the time who do you think the possible father is PLEASE giv

Too close to call: That's too close to call. One should keep men 2-3 weeks apart in order to be able to predict who the father is, because the weeks of pregnancy, the differences in each man's sperm, the survival time of sperm in a woman, the ovulation day, and the conception day, are all estimates. (A simple way used over many centuries is: the father of the baby is the man she is married to.) ...Read more

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If my conception date is Aug 3rd. Around what day did I have sex and ovulated? I'm due April 26th 2015. Please help me. My periods are irregular

If my conception date is Aug 3rd. Around what day did I have sex and ovulated? I'm due April 26th 2015. Please help me. My periods are irregular

Conception 8/3: Means you had sex 3-5 days before, or on that date. If there were multiple partners involved, there is no way to pinpoint which one may have impregnated you, if that is what you are asking. Thanks for trusting HealthTap! ...Read more

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Are conception and implantation interchangeable? Trying to narrow down conception/ovulation dates. Help me better understand?

Are conception and implantation interchangeable? Trying to narrow down conception/ovulation dates. Help me better understand?

Not the same: Conception occurs when a sperm enters the egg. This usually occurs in the fallopian tube. After that, the fertilized egg begins to divide, creating more an more cells. During this time, the fallopian tube transports the embryo to the uterus. 5-6 days after conception, the nest of cells burrows into the uterine wall. This is implantation. Best wishes! ...Read more

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How to calculate due date from conception and ovulation test?

Your OB can: Show you on an OB wheel you are due 38 weeks from your conception date if you were having 28 day cycles. ...Read more

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If you ovulate late would this affect ur due date instead of working out conception from lmp?

If you ovulate late would this affect ur due date instead of working out conception from lmp?

Yes: The due date is calculated from the LMP based upon a 28 day cycle. For each day your cycle is longer than 28 days, you should add a day to the expected due date. For example, if you had a 32 day cycle, that would be four days longer than 28 and you would add 4 days to the due date predicted from your cycle. We normally calculate a due date from the LMP by subtracting 3 months and adding 7 days. ...Read more

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I'm ovulated on 04/30 I had conception the same date. But coming 04/08 I have dr appointment for ultrasound. It will come any positive result?

I'm ovulated on 04/30 I had conception the same date. But coming 04/08 I have dr appointment for ultrasound. It will come any positive result?

Today May Third: Are you sure you understand how babies grow and how pregnancy is tested? There is no test in the world that can tell you if you are pregnant seven days after sex. ...Read more

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Due date is January 27 at 9 week scan. Lmp was 16 april but due date from 9 week scan made lmp 22nd april. Did I ovulate late? When was conception?

Due date is January 27 at 9 week scan. Lmp was 16 april but due date from 9 week scan made lmp 22nd april. Did I ovulate late? When was conception?

Online calculator: Use a reverse due date calculator for free online and this will be easy for you to find out. Simply type in your due date and the conception date will be calculated for you. ...Read more

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So that means I get pregnant after my ovulation and conception date?

So that means I get pregnant after my ovulation and conception date?

Yes and No: If talking about one cycle, a woman can't get pregnant before she ovulates because the egg hasn't arrived yet (so the sperm can't get to the egg). Then, she cannot "get pregnant" again after her conception date, because she is already pregnant (already conceived). However, we count "weeks of pregnancy" from the start of the last period, which means "1 week pregnant" is actually before ovulation! ...Read more

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Based on an ultrasound at 9 weeks how can I estimate my ovulation/conception date?

Based on an ultrasound at 9 weeks how can I estimate my ovulation/conception date?

Ask your Doc: An ultrasound date of 9 weeks is fairly accurate so your doc can extrapolate backwards and calculate when you most likely ovulated and which days you most likely conceived. For example, if you were 9 weeks today (11-14-2012) you most likely conceived around 9-26-12 (7 weeks ago). Remember conception age is always 2 weeks less than the gestational age we calculate. Take care. ...Read more

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How accurate are the doctors measurements of the baby to determine baby weeks, due date, conception, ovulation etc.?

How accurate are the doctors measurements of the baby to determine baby weeks, due date, conception, ovulation etc.?

Depends on variables: Early projections are based on a woman's history which can be inaccurate. Later data derived from an ultrasound and or other measures tend to be more consistent. Late gestation ultrasounds can either confirm or adjust projected dates. ...Read more

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How accurate are the doctors measurements of the baby to determine baby weeks, due date, conception, ovulation etc...

Pregnancy dating: I assume you are talking about ultrasound measurements. The accuracy depends on when the ultrasound is performed-- an early ultrasound (8-10 weeks) is accurate to within a few days. Later ultrasounds are much less accurate and may have a margin of error of up to 3 weeks in the late 3rd trimester. ...Read more

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How accurate are the doctors measurements of the baby to determine baby weeks, due date, conception, ovulation etc...?

How accurate are the doctors measurements of the baby to determine baby weeks, due date, conception, ovulation etc...?

Depends on variables: Early projections are based on a woman's history which can be inaccurate. Later data derived from an ultrasound and or other measures tend to be more consistent. Late gestation ultrasounds can either confirm or adjust projected dates. ...Read more

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My ovulation and conception date is april 29 and my implantation is may 8 so what does this mean? How do I know when I got pregnat?

My ovulation and conception date is april 29 and my implantation is may 8 so what does this mean? How do I know when I got pregnat?

The earliest time: You got pregnant is your ovulation date. The latest time you got pregnant is April 30. I hope this helps. If you still have any concern about this contact me on my Virtual Practice at www. Healthtap. Com/dryetimyan ...Read more

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If my last period was on the aug. 22nd and my due date is may 29 what days are possible conception not ovulation?

Difficult: I can be hard to say exactly but about 3-5 days after ovulation which is 2 weeks after your period. There can be variation. Good luck. ...Read more

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Could experiencing tapping sensations above the pubic bone on one side after predicted ovulation date be a sign of conception, which is rare for me?

Could experiencing tapping sensations above the pubic bone on one side after predicted ovulation date be a sign of conception, which is rare for me?

Not sure: As the "owner" of that reproductive system, you are more familiar when it "speaks to you" with its "text messages". It could be a sign of ovulation, or something else. ...Read more

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I am 6 weeks and 3 days pregnant when was my ovulation and conception date? Period last 7days and last period was the 1st or 5th of May.

I am 6 weeks and 3 days pregnant when was my ovulation and conception date? Period last 7days and last period was the 1st or 5th of May.

Calculator: Use a reverse due date calculator for free online and this will be easy for you to find out. Simply type in your due date and the conception date will be calculated for you. ...Read more

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If my due date is nov22nd conception date march1st and ovulation february 22nd what's an estimate date of when sexual intercourse took place?

No telling: Sperm live inside the female reproductive tract for up to 7 or more days; however, when trying to get pregnant you should not count on sperm more than 2-3 days. The egg is only viable for about 12-24 hours after ovulation. Therefore, conception is rare if sex occurs after ovulation. I hope this info helps you understand how your conception may have occurred. Best wishes. ...Read more

Conception (Definition)

Conception is the union of an egg and sperm to form a zygote. The zygote is what ...Read more