PCOS Messages for November, 2002: Re: How do you count cycle days?

Re: How do you count cycle days?

From: anonymous (anonymous@obgyn.net)
Tue, 5 Nov 2002 14:57:46 -0600 (CST)

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B-b-b-b-but... Just because you ovulate during your period doesn't mean you're not ovulating 14 days before your next period, does it?

As I understand it... the menstrual cycle has two stages - follicular (folical developing) and luteal (progesterone rising, egg released). The luteal phase should range from 12-16 days from woman to woman but in any given woman, the luteal phase is pretty, if not exactly, consistant. The follicular phase might be longer or shorter, due to external factors... but the luteal phase should always be the same. Meaning, stress, sickness, etc., is likely to offset your cycle during the follicular phase, but once ovulation occurs, the period's gonna come as usual.

If the luteal phase is shorter than 12 days, a woman is said to have a luteal phase defect. This is seen often in women with recurring miscarriage.

Joe-average-don't-ya-wanna-choke-her-textbook-normal-woman has 28 day cycles with ovulation occuring on day 14... the average of 12 and 16.

Some women have 21 day cycles. Some have 35 day cycles. If these women are having regular cycles and have good healthy luteal phases, ovulation should occur between days 5-9 and 19-23, respectively.

Now, the average menstrual period lasts from 5-7 days, is heavier in the middle, and entirely cramp-and-problem-free.... I mean, ummmm... Since the menstrual period can last anywhere from 1-10 or more days... it is entirely possible to ovulate during your period. (hence the common complaint "But I had my period, I can't be pregnant!")

If your body is working normally, though, all this means is, your next period - the period this ovulation was for - will happen, as it should, in 12-16 days.

Anyway, unless there is a luteal phase defect, I think it IS correct to say that ovulation occurs (on average) 14 days (range 12-16) before menstruation. The fact that some women ovulate during menstruation does not refute this fact. A period should always follow ovulation since ovulation means, an egg is released... progesterone rises... the egg is or is not fertilized, resulted in the body keeping the lining produced (is) for the egg or letting it go (isn't). Menstruation (tewchnically just bleeding) without ovulation can occur but ovulation without menstruation is, I thought, not too common...

Barb, you say you always ovulated on day 9... but how long were your cycles?

I want to point out that I prefaced the above with "As I understand it..." so please direct any criticisms of my synopsis at my understanding, not at me. :-)

- jodi

At Sun, 3 Nov 2002, Barb wrote: >
>Not to cause a dispute at all but to make a slight correction where
>ovulation is concerned:
>
>The first day of yourperiod is the first....that is correct.But you do
>not necessarily ovulate 14 days before your period.Some even ovulate
>during menestration,although rare.Some ovulate on day nine or day ten or
>so fourth.
>Just wanting to point this out as some get confused thinking that if
>their period is 28 days...you should ovulate on day 14.I used to ovulate
>on day nine like clock work,thus the reason for the ttc working but many
>miscarriages.This is the reason the old rythm method was not that
>successful unless you did live in a perfect world where you knew exactly
>when ovulation would occur.
>Mine occured like clock work but never went through a full term
>pregnancy.
>
>Yep.,only in a perfect world if this is what you mean then I agree!;)
>
>>At Wed, 16 May 2001, anonymous wrote:
>>>
>>>The first day of your period is day 1. You ovulate 14 days before your
>>>period. So if your cycle is 40 days long, you ovulate on day 26. Of
>>>course, this is in a perfect world.
>
>--
>Sincerely,
>Barb C.
>

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