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Due Dates

Due date refers to a pregnant woman’s expected delivery date. It is usually 40 weeks from  first day of the last menstrual period. Less than 5% of births actually occur on the due date.

552 Questions

When did you conseive if your due date is may31?

I will assume you are talking about May 11th 2011. That would make your estimated conception date May 24th 2011. However, that date may be out by a couple of days. It also depends on when you actually ovulated.

Why is human gestation period so long?

Generally speaking, the larger the animal, the longer the gestation period. A baby must grow from two cells to many billions before it is sufficiently developed to live on its owe. That takes quite a while.

When did i conceive ifmy due date is on September 21 2008?

Technically...Dec 8 of the previous year... realistically....maybe Dec 7 or Dec 9.

How early in your cycle can you conceive?

Sometimes a blood test could detect as early as 7 days after conception.

a urine test is less sensitive, though I've heard of positive tests as early as 8 or 9 days after, but usually it's more like 12 or more days.

~pawsalmighty

AnswerTwo days before your period is expected. Answerat first thought of being pregnant however most women wait until 3-days after their missed period to take a pregnancy test i would sugest the: EPT pregnancy test(error proof test) AnswerThe earliest and most accurate time you can detect pregnancy is with a urine test....home pregnancy test, when your late for your period or three weeks after having unprotected sex.

Or with a blood test, you can detect pregnancy within 5-7 days after having sex.

How accurate are the doctors when they tell you a due date judging by the fundal height?

You are not given a due date judging by the fundal height.

A comparison of your size with length of pregnancy may be made by measuring the fundal height with a tape measure. After 20 weeks the length of pregnancy corresponds with the measured fundal height in centimetres. This is fairly accurate if done by the same person each time. More importantly it shows if your baby is maintaining its growth. For example if you measure 20cm at 20 weeks, and then at 30 weeks you only measure 27cm your baby is not growing at the normal rate. It can also show if your baby is larger than average.

Both small and large babies may have trouble at birth.

When is your conception date if your due date is february 25th 2011?

You most likely conceived on or around September 1st 2005. Go to this website and check for yourself if you'd like: www.franklypregnant.com/calculator2.html -Tori We base due dates on the first day of the woman's last menstrual period. Actual conception takes place after that time (usually about two weeks, but not always). So, for a due date of May 25, 2006, the last menstrual period most likely began on August 18, 2005, and actual conception probably occurred somewhere around September 1st (plus or minus a week or so). Hope this helps! Dr. B. Nine months previous to the due date.

What is the best way to calculate due date and estimate delivery date?

It is really complicated. The simple calculations listed below based on a fixed addition from your last menstrual period or those used by most online calculators are terribly inaccurate. A lot of recent research has indicated a number of other variables to consider. (See the page links, further down this page, listed under Related Links).

This is how to calculate your due day. The due month is: your LMP month + 9. The due date is: your LMP date plus 7. For example, if your LMP was 3/10/95: 3 + 9 = 12 (Dec), 10 + 7 = 17 (17th day). If the added month exceeds 12, then you subtract 12. For example, if you LMP was 6/20/95, the month will be (6 + 9) - 12 = 3 (March), and the date will be 20 + 7 = 27, so your due date will be 3/27/96.

  • There are loads of methods and calculators out there but their accuracy is limited.
  • I was always taught -3 +7, if your LMP was 10/11 you -3m= 7/11 and add 7d= 7/18.
  • You can always use an online due date calculator. See the page links, further down this page, listed under Related Links.
  • Maybe I don't get it but what is all the maths above? Why would you do all this if someone else would do it for you?
  • Due Date Calculation

Pregnancy, on average, lasts 267 days (38 weeks) from conception. If you positively know your conception date, you can add 267 days to it for your due date. The following formulas can also tell your EDD:


Date of the first day of your last period + 281 days = due date
or
Date of the first day of your last period + 7 days - 3 months = due date
The methods here are based on the average 28-day menstrual cycle.

When did you conceive if your due date is June 27?

I think around Feb. 24th would be your conception date. This site will enable you to pinpoint your conception date. After clicking on the link, scroll down a little and you will see a long table of dates. http://www.genetree.com/about/conception-calculator.asp

What was the longest pregnancy?

The longest pregnancy was 375 days along. Her pregnancy hit an almost pause after the first trimester and resumed again at 6 months. and had a healthy 6lb baby. that was in LA California. - googled it

If your son's due date was Nov 21 and he was born on Nov 10 when did you conceive?

was oct 11th your due date cause ur baby can be born full term from 37 to 42 weeks if the 11th was ur due date u conceived app January 18th if that was not ur due date i need ur due date to determine this

When did you conceive if your due date is October 23?

approximately Saturday, January 29, 2005 Your conception date was January 30 based on your last menstruation date of January 16. However, some women ovulate later than others so your dates may be out by + or - 5 days. The link below will answer all your questions in relation to conception dates, due dates and last menstruation dates. After clicking on the link, scroll down a little until you get to a long list of dates, then follow the appropriate column. Hope it helps! http://www.genetree.com/about/conception-calculator.asp

When did you conceive if an ultrasound says you are 7 weeks 2 days on April 5?

Ok so you need to find out the day, but if you count exactly nine months back you should be able to narrow down the exact day. I would say sometime time in September/ early October. If you post the date, it would be easier for me to figure out. As you haven't provided an accurate date in June, it is estimated that she conceived around 9 September - 9 October.

Can you have a baby two months after due date?

No. The placenta is designed and intended only to work for 9 months. After 9 months it starts to degrade and detatch from the uterine wall. That's why doctors need to be as exact as possible when determining due dates, especially with Caesarian section.

What percent of women deliver on their actual due date?

I dont know the percentage but at least the baby is already term.

How early can you show sings of being pregnant?

You can show during your second month of pregnancy. Some women don't start showing until their fourth month of pregnancy. It depends on your weight before you were pregnant when you will show.

How accurate is 6 week 5 day ultrasound?

When figuring the due date by a sonogram, the doctor will measure the crown-rump length (CRL).

The length of the embryo on the longest axis constitutes the crown-rump length. This is actually considered to be the best parameters to date the embryo. The accuracy of it is plus or minus 3 to 5 days.

A rough rule of thumb is that CRL + 6.5 = Menstrual Age in Weeks.

That said, it doesn't matter what week the sonogram is taken to determine its accuracy, because it is based on the CRL measurement of the fetus. No matter what the length is (because it was done on different weeks of gestation) is will directly relate to the week of gestation and ultimately determine the EDD (estimated date of delivery). The EDD is just that, and educated guestimate (guess/estimate) and is not meant to be written in stone.

When the due date has been set by an accurately measured CRL, it shouldn't be changed by a subsequent scan. If another scan done 6 to 8 weeks later says that you should have a new due date that is further away, they should not normally change the date. Instead, they should interpret this finding as that the baby is not growing at the expected rate.

After more testing has been done to determine whether the baby is growing properly and there is no other cause for concern, then it is feasible that perhaps the original measurement of the CRL wasn't properly measured by the person operating the sonogram. In this case, the new date is the actual date (considering the new measurement had been measured properly).

Keep in mind, however, when trying to figure your conception date that a full term pregnancy is considered to be 38-42 weeks, and that the accuracy of the sonogram being plus or minus 3-5 days. The date you actually give birth is directly related to the CRL and other factors of development of the fetus. Also, an egg doesn't become fertilized and implanted immediately after ejaculation. It can take up to 72 hours post-sex before that happens.

By taking the due date you have been given, count back 40 weeks. The date you get is only a rough estimate of the date of conception. It could be off by about one week. The day you recall having sex should be within that week, either before or after the date you counted back to.

Please note: This really gives you a two week timespan. Example: If the conception date you come up with is May 10 and you know you did not have sex that day, you could have potentially conceived that day (but that is kind of beside the point for the moment). You may have had sex anywhere from May 3 to May 10, or May 10 to May 17 and conceived up to 72 hours after you had sex in between May 3 to May 17.

Your due date is July 10 when did you get pregnant?

Two days late is perfectly normal. A date by ultrasound is only an estimate.

What is Nicole Richie's due date?

She is due sometime after Christmas but before New Years. Just google her and you get all kinds of sites. TMZ has a lot on her. -------------------------------------------------------------------------------------------------------------- Actually I believe she's due in August (soon to be over-due)

Your last period is November 28 so when is your due date?

November 28th 2008? Then your due date would be roughly Friday September 4th 2009

I have an ultrasound scheduled on the 30th of this month if I am pregnant would they be able to see anything on the ultrasound even though it is only two weeks after ovulation?

If you were pregnant the developing embryo would be about the size of the head of a pin. The embryo is not the first sign of pregnancy found on ultrasound; the yolk sac shows up long before the embryo is visible. The yolk sac can't be seen uon ultrasound until at least four weeks after the last period.

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