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Length of Pregnancy

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Length of Pregnancy Posted: 02-03-04 14:34pm


If length of pregnancy is 40 weeks then why do we say a baby is born in 9 months. They do not add up? Please explain.

hearenbaby8504

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You Are Really Not Posted: 02-08-04 16:55pm


The Dr. Say you are really pregnant for 10 months, my Dr. Says this to me all the time. Everyone is under the impression of 9 months, even I was, ask your Dr. Next time you are able to talk to him/her

linuxChique

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Posted: 05-26-04 00:19am


Because when you count pregnancy in weeks, you count from your last period, which is two weeks _before_ your conception. And pregnancy really lasts nine and a half months after conception, but we round it off to nine months because it's easier to think about. Therefore, nine months = 40 weeks.

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Re: Length of Pregnancy
Posted: 04-05-05 18:21pm

gr-baby wrote:

if length of pregnancy is 40 weeks then why do we say a baby is born in 9 months. They do not add up? Please explain.

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Posted: 04-23-05 16:09pm

linuxchique wrote:

because when you count pregnancy in weeks, you count from your last period, which is two weeks _before_ your conception. And pregnancy really lasts nine and a half months after conception, but we round it off to nine months because it's easier to think about. Therefore, nine months = 40 weeks. :-)

ihad a question for you when they do the ultra sound does that add the 2weeks in there form the date of your last period.. Or does it line up with the date you concived or around. How off are ultra sounds

Nicknack

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Posted: 06-25-05 09:11am


They include the first day you started your last period....

Nicknack

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Posted: 06-25-05 09:13am


When they give you a due date that means you could have the baby around that time.....Before or after that time period! By the way isn't it nice having a break from periods?

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Re: Length of Pregnancy
Posted: 07-18-05 10:26am

gr-baby wrote:

if length of pregnancy is 40 weeks then why do we say a baby is born in 9 months. They do not add up? Please explain.

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Posted: 07-18-05 15:13pm


I have no idea. That's something you'll just have to ask your Dr. About. That's just what I was told by my gyno so ask them.

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40 Weeks = 9.2 Months Posted: 10-11-05 22:48pm


40 weeks is 9 months 5 days. There are more than 4 weeks in a month. A month averages 30.4 days (365 divided by 12). Divide 280 days by 30.4 days in a month and you get 9.2 months. From, a math teacher

michelle1981

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Re: 40 Weeks = 9.2 Months
Posted: 10-13-05 09:52am

laura8603 wrote:

40 weeks is 9 months 5 days. There are more than 4 weeks in a month. A month averages 30.4 days (365 divided by 12). Divide 280 days by 30.4 days in a month and you get 9.2 months.

From,
a math teacher

well your baby will come when it's ready....38 weeks, 40 weeks, 42 weeks(for us less fortunate!). Really you're only pregnant for less than 9 months. To explain....If your lmp started january 20th and your due date is october 27th, you would have conceived on or about february 3(2 weeks from start of cycle). So february 3rd to october 27th is one week less 9 months.
Hope I didn't confuse any of you :)

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Re: Length of Pregnancy
Posted: 12-13-05 14:18pm

gr-baby wrote:

if length of pregnancy is 40 weeks then why do we say a baby is born in 9 months. They do not add up? Please explain.

:oops: :oops: :twisted: :?: :idea: :wink: :oops: :d :shock: 8) :? :shock: :d :) :( :o :lol: 8)

fatfamily02

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Posted: 12-18-05 16:44pm


Yes when they do ultra sound it is including the 2 weeks before conception. So when they do u/s and say 5 weeks you are literally only 3 weeks past conception.( room for error is +/- 5days) from ovulation to birth is 38 weeks. It is exactly 10 months on lunar calander,(from period to birth) but on our calander it is actually 8 months, 2 weeks and 6 days.(from ovulation day) you take your ovulation day--(period start day+ 14)day #14 you add 9 months to the day , then take off 8 days. You will get the exact same day as the .Dr pregnancy wheel.

agacrit

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Joined: 02 Dec 2007
Posts: 1

Posted: 12-02-07 11:48am


What is the longest someone can be pragnent? I am at 41 weeks and still waiting! Some nurse just told me that it is possible to wait till 46 week, is that really true?

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