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Doctor insights on: Date Of Ovulation And Conception

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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?

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

Dr. Philip Chenette
1,831 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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How to calculate due date from conception and ovulation test?

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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Does fertilization finish before the conceive date of pregnancy?

Does fertilization finish before the conceive date of pregnancy?

Yes: Fertilization is conception. Therefore, a woman whose egg has finished being fertilized has finished conceiving. She has a one-celled "baby" which is just a fertilized egg. It splits into 2 cells, then 4 cells, then 8 cells, etc... No woman knows exactly when she conceives, in a natural pregnancy. How would she know? She can neither see it or feel it. Conception dates are therefore only estimates. ...Read more

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In irregular menstrual cycle we how can calculate the expected date of delivery?

In irregular menstrual cycle we how can calculate the expected date of delivery?

1st trimester sonos: Pregnancy sonograms performed by a skilled certified sonographer between 6 and 14 weeks are very reliable "dating scans" and can help determine the gestational age with fairly good accuracy and estimate the expected date of delivery. Sonograms performed later in the 2nd or 3rd trimester are still useful but are not as accurate. ...Read more

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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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Is a date of conception due date calculator recommended?

Is a date of conception due date calculator recommended?

U can: Ask your OB he or she can figure it out based on how often your periods are and when u are due. ...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...?

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...

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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Explain due date based on date of conception?

Due date: The normal term pregnancy last 40 weeks. This is calculated from the last menstrual cycle. The last menstrual cycle calculation relies upon the fact that ovulation occurred on day 14. But if calculations are from the date of conception then the pregnancy is only 38 weeks. ...Read more

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Can you conceive the day of ovulation?

Can you conceive the day of ovulation?

Yes: Sperm may live in the female genital tract for up to a week. Ovulation is day #14 counting from the first day of your period. If you have sex on days 10, 12, 14, 16, and 18; you can optimize the chances of becoming pregnant. With these details in place, you can absolutely conceive on the day of ovulation! ...Read more

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My ultrasounds date back to my (estimated) date of conception rather than the first day of my LMP. Is this normal?

Yes: Most obstetricians will use your LMP to determine your probable date of conception. This is the more appropriate starting point for dating your pregnancy. ...Read more

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Why don?T they calculate due date by day of conception?

Unsure: Because the majority of women do not know when they conceived; many can give a good report of when their last period was. ...Read more

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Are HCG levels measured from last menstrual period or from date of conception?

Are HCG levels measured from last menstrual period or from date of conception?

Neither: HCG is a hormone and is measured like a chemical. A level below 5 is not consistent with pregnancy and level above 25 indicates pregnancy. In-between these two values warrants repeating the test in a week or so. See this site for more info. http://americanpregnancy.org/while-pregnant/hcg-levels/ ...Read more

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Does a ultrasound for LMP dating that assumes a 28 day cycle mean conception occured on or around the 28th day after the projected date?

Does a ultrasound for LMP dating that assumes a 28 day cycle mean conception occured on or around the 28th day after the projected date?

Menstrual age vs ...: Gestational age. Before ultrasound, everything was based on number of weeks since the first day of the last menses. That is the menstrual age of the pregnancy. Most women become pregnant 2 weeks after their last menses, which is the gestational age, or the actual time (weeks) since conception. The conception at 2 weeks after menses assumes a 28 day cycle. ...Read more

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What are the exact dates to use ovulation kit my cycle is 28 days?

What are the exact dates to use ovulation kit my cycle is 28 days?

Mid-cycle: Typically, ovulation is 14 days before the onset of menses. I suggest that you start about 2-4 days before expected menses. So, start about day 12 and continue to day 20 or about a week. I hope this helps - best wishes. :). ...Read more

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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...?

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 date and conception date is june 3rd and my implantation date was june 13th...Does that mean i had sex on the 3rd and got pregnant?

My ovulation date and conception date is june 3rd and my implantation date was june 13th...Does that mean i had sex on the 3rd and got pregnant?

Did you?: You know better than anyone in the world whether or not you had sex on the 3rd. It sound likely that's when conception was. The implantation date is not precisely determined, just a guess, and should not be considered reliable. ...Read more

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If my estimated date of conception is 16 days after my LMP does that mean i most likely ovulated a lil later ?

Yes: Normal ovulation occurs approximately days 13, 14, or 15. Day16 is just slightly later than usual. ...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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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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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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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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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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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

Conception (Definition)

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