hail fleckerbug, queen of the morons..

[fleckerbug.livejournal.com]

Sorry but I can't for the life of me remember... do you ovulate ~14 days after the end of your period or ~14 days from the beginning? And does pregnancy count from the first day of your last period or the last day? Thanks.

Comments

[ptilu.livejournal.com]

Well, keep in mind that it's different for all women and there's no sure way to tell which day you ovulate just by looking at the date.

But on average, you ovulate about 14 days *before* the beginning of your next period. Which is also 14 days after the beginning of your last period, IF and only IF you have an ideal 28-days cycle.

About the pregnancy thing, I don't know, hopefully another poster can help you.

[fleckerbug.livejournal.com]

Okay. thanks.. now that I know that I'm pretty sure I know the answer to my second question.. and I know everyones not the same, I'm jsut trying to figure out if I should wait to test.

[gothictiger.livejournal.com]

I know the PP I went to, 5 years ago, calculated my due date based off something dealing with the start of my last known period.

[katherynne.livejournal.com]

So let me see if I understand this right:
You have your period, it ends. 14 days later, you ovulate. 14 days later, you begin your next period. (ideally)

Is that right?

[willow-starr.livejournal.com]

No. You ovulate 14 days after your period starts. Counting the days of your cycle begins on the first day of menstruation, the last day is the day before your next period.

[benthicblue.livejournal.com]

Actually, it would be 14 days before your period begins.

Assuming you had a perfect, clockwork 28 day cycle, it be 14 days either way, which makes it confusing. For most women, you ovulate 10 - 14 days before your period begins. First day of your period is cycle day 1, so in a 28 day cycle, you would ovulate anywhere from cycle day 14 - 18. If you had a 32 day cycle, you would ovulate on between cycle days 18 and 22, etc. etc.

Of course, there are tons of things which can affect this. It's possible to have regular periods without ovulating at all as well as a host of other issues like short luteal phases.

[ptilu.livejournal.com]

See willow_starr's reply. Ideally you begin your period 14 days after the FIRST day of your period. Not 14 days after your period ends.

[farfalla-dolce.livejournal.com]

First day of yoru last period. I am ttc and so I have been reading fatcs like crazy. :)

[jupiter--crash.livejournal.com]

agreed.

[benthicblue.livejournal.com]

A typical woman will ovulate 10 - 14 days before her period begins. This time is known as the luteal phase. It usually takes a few cycles of charting your cyles before you can consistently predict how long your cycles are and when in your cycle you are ovulating.

Pregnancies are usually calculated from the start of your cycle (the first day of your period), so that your pregnancy is actually 2 weeks ahead of the fetus age. This calculation can be thrown off if you didn't ovulate exactly 2 weeks into your cycle (meaning you don't have a perfect 28 day cycle, which I swear, NO ONE actually has). On an ultrasound, the tech can measure the size of the fetus and usually calculate the due date pretty closely.