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Doctor insights on: Calculate Due Date Based On Ovulation

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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

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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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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Due date is august 16, 2014. When was I ovulating?

Due date is august 16, 2014. When was I ovulating?

11/22/13 +/1: If your due date is 8/16/14, you would have ovulated around 11/22/2013;

how accurate this is depends on how it was calculated. If it was based on an early first trimester u/s it would be +/- 5 days. If it is based on a late first trimester u/s it would be +/- 7 days and if it based on a second trimester u/s it would be +/- 2 weeks. ...Read more

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How accurate are due date reverse ovulation calculators?

How accurate are due date reverse ovulation calculators?

Varies: Depends how accurate your due date estimates are. If you have a super-reliable dating then the reverse calculation is "pretty good, " like within 3-4 days. If your EDD is +/- 2 weeks as it often is, then the reverse calculation will be not useful. Good wishes. ...Read more

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If I conceived and ovulated march 2013 when is my due date?

If I conceived and ovulated march 2013 when is my due date?

40 weeks: You should deliver your baby in december. For a more accurate due date, try this site: http://www. Medcalc. Com/pregnancy.Html
put in the first day of your menstrual period, and it will help you calculate for sure. Better yet, see your OB doctor soon, if you haven't already. ...Read more

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Do I go by due date or my LMP when it comes to figuring out when I ovulated?

LMP: Your due date is often calculated from your LMP not the other way around. Ovulation usually occurred 14 days+ from the LMP depending on the length of your menstrual cycle normally. ...Read more

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I was told today 19/15 my due date was jan 30 when did I most likely ovulate or conceive?

I was told today 19/15 my due date was jan 30 when did I most likely ovulate or conceive?

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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My due date is november 25, 2013, can you help me figure out when did I ovulated, and conceive?

My due date is november 25, 2013, can you help me figure out when did I ovulated, and conceive?

Conception: Assuming you have a 28 day cycle (start of one period to next), ovulation and conception would have likely occured around 3/4. This is just an approximation though and if there is more than one potential father please consider paternity testing. ...Read more

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Did ovulation occur earlier if I was told that my due date was june 3/13 (lmp:aug 27) and then after u/s was told due date is may. 31. Why the change?

Not necassarily: The u/s has a limit of error.
With what you have given the LMP due date should be 6/3/13 which fit the u/s perfectly. I would have left your due date at 6/3/13. ...Read more

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I ovulated on 10/10. When would my due date be?

I ovulated on 10/10. When would my due date be?

Conceived 10/11/12?: Due date can be calculated from conception date, so if conception is 10/11/12 (oct. 11th), then the baby is due on the fourth of july! ...Read more

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My ovulation day are dec 9-14 what will be my due date?

My ovulation day are dec 9-14 what will be my due date?

Not pregnant yet: This will all depend on if you do conceive. Dating a pregnancy happens in the early ultrasounds at the ob. ...Read more

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If my due date is June 7, 2015 when did I conceive or ovulate?

If my due date is June 7, 2015 when did I conceive or ovulate?

September 13: A human gestation(pregnancy) lasts 280 days from the first day of the last menstral period. Ovulation occurs approximately 2 weeks after menstration with conception within 1-2 days thereafter. This is approximate timing and can vary a few days. ...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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If we have intercourse on a day of ovulation (Feb.13), then what will be my due date? Can you please tell me. Thanks in advance...

If we have intercourse on a day of ovulation (Feb.13), then what will be my due date? Can you please tell me. Thanks in advance...

Due date: Due dates are typically figured out based on the first day of your last menstrual period. On average, ovulation will take place 14 days later. The rough calculation involves adding 280 days (40 weeks) to the first day of the last period. In your case, you could probably add 266 days to Feb 13, which would be Nov. 6. Of course all due dates are approximate. Best wishes. ...Read more

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According to my due date its saying I conceived 11 days before I ovulated. But I ovulated when I was supposed to. I don't understand.?

According to my due date its saying I conceived 11 days before I ovulated. But I ovulated when I was supposed to. I don't understand.?

Talk to your OB: Your due date is based on the first day of a 28 week cycle (- 3 months + 7 days) and nowadays the results of an ultrasound. Since there is not information to make any further determination. Please discuss this with your OB clinician. ...Read more

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Would it be a different due date if I ovulate on 17 not 15 day period started 8/12/13 ended 8/18/13 ovulated 8/28/13 suppose due date is 5/19/14?

Would it be a different due date if I ovulate on 17 not 15 day period started 8/12/13 ended 8/18/13 ovulated 8/28/13 suppose due date is 5/19/14?

No: Life is not exact, and due dates are estimates. That means ovulating on one day or another day 2 days earlier or later makes no real difference in the estimated due date. Also, most babies are not born on their due dates. ...Read more

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The last day of my cycle was the 9/15/12. My due date is 6/23/13. The dr. Said I conceived on 9/16/12? How is that possible when I ovulated on 9/28

The last day of my cycle was the 9/15/12. My due date is 6/23/13. The dr. Said I conceived on 9/16/12? How is that possible when I ovulated on 9/28

Doctor is wrong: If the due date is 6-23-2013, the conception date is about september 29-30th. The doctor is confusing time of conception with the day the last period started. ...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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How to treat a woman whose cycle varies from time to time. How can she make it stable so she can calculate her ovulation dates?

How to treat a woman whose cycle varies from time to time. How can she make it stable so she can calculate her ovulation dates?

Challenging: If she is regularly irregular---subtract 14days from the period interval and that is generally when she is ovulating. Example periods every

1. 60 days minus 14 = ovulation every 46 day
2. 90 days minus 14= ovulation every 76 days
if irregulalrly irregular- next to near impossible- have intercourse every other day as sperm will live in cervix up to 72 to 96 hrs.

You should have hormone tests! ...Read more

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My cycle varies between 28 and 32 days? Is it bad that it based on the different days? How would I calculate when my ovulation occurs?

My cycle varies between 28 and 32 days? Is it bad that it based on the different days? How would I calculate when my ovulation occurs?

Ovulation: Ovulation usually occurs 12-16 days before menstruation. If your typical menstrual cycle length is 28 days, ovulation usually occurs on day 14. If your cycle length is 32 days, ovulation would be on day 18. ...Read more