To give a short answer, without knowing the average length of your cycles
she* can not* have calculated an accurate due date for you since your
average cycle length isn't 28 days (and in particular this cycle would
definitely have been longer). This is a serious problem as the due date
using an average cycle length will be off by around two weeks (or long
enough to pose a serious risk of unneeded and unwise induction)

Calculation by LMP are never as certain as peak day calculation in the first
place.

You have three choices,
a)tell the doctor the normal length of your cycles-if the doctor is any good
they will readjust your due date
b)tell the doctor the normal length of your cycles and your peak day-being
aware that many doctors will not know what to do with the peak day
information
c)fudge your LMP

I admit that I've always fudged the LMP (or why I've been within four days
of the due date for four out of five babies 8-D ). Partly for the simple
reason that remembering the peak date has always been easier for me then
remembering the actual LMP (LMP-not important, peak date -IMPORTANT).

Emily




On Thu, Feb 5, 2009 at 1:15 PM, NFP4Me <nfp4me@...> wrote:

> Hi Ladies!
>
> I just found out I'm pregnant! This happened during my first postpartum
> cycle. My peak day was Day 30 of my cycle, and I've always had a 12-14 day
> luteal phase. If that was the case (since I conceived before my period
> started, obviously...) that would have made this a 41-42 day cycle.
>
> So--when calling the doctor to inquire about making an appointment, the
> nurse asked the date of my last period (Dec. 25, 2008) and told me that my
> EDD was Sept. 30, 2009.
>
> Does this sound logical if I had such a long cycle??? I have never had the
> standard 28 day cycle. How can they estimate a due date without even asking
> what kind of cycle you had?
>
> I'm not good with math or numbers so if the answer to this is obvious,
> please pardon me...
>
> Thank you for all you prayed that I would conceive quickly!
>
> God bless,
>
> NFP4me
>
> [Non-text portions of this message have been removed]
>
>
>


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