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Discussion Starter · #1 ·
Wow, I'm feeling very silly because I never knew this was the case, but based on some googling:<br><br><div style="margin:20px;margin-top:5px;">
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<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">Gestational age, or the age of the baby, is calculated from the first day of the mother's last menstrual period. Since the exact date of conception is almost never known, the first day of the last menstrual period is used to measure how old the baby is.</td>
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I was playing around with calculators and found one that will tell you what week you're in. I decided to go by the estimated due date (gathered from a conception calculator) because I have such long cycles and it gave me 4 weeks, whoa!<br><br>
So basically, you're already at a couple weeks before the egg and sperm get together, that just boggles my mind.<br><br>
Was anyone else aware of this? I can't believe I'd never come across this before -- I'd be so excited to not only discover I am expecting but that I'm already 4 weeks into the 40 (10%)!! Of course, this is jumping ahead a bit since I don't know if this was a successful month or not yet, but still....
 

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This caused quite a bit of confusion when I found out I was pregnant (unexpectedly). My period was about a week late when I tested. When I called my ob/gyn, the receptionist said something like, "we'd like to see you at about 5 weeks." And I was like, "five weeks, my god, do you expect me to just sit here and handle this on my own for another five weeks? I have no idea how to be pregnant! I can't wait that long, please try to get me in sooner!" Then she told me I was just a few days shy of the five week mark. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/innocent.gif" style="border:0px solid;" title="shy"> It blew my mind that the day before I had no idea I was pregnant, and already I was five weeks into it! <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/lol.gif" style="border:0px solid;" title="lol">
 

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Yes, I knew this- it can cause A LOT of problems if you don't ovulate around day 14. If you ovulate on day 21, for instance- they would be calling you 3 weeks pregnant when you are ovulating. It doesn't seem like a big deal until you hit 40 weeks and they are breathing down your neck because you are "overdue" even though you are technically 39 weeks (37 gestational age). It does get confusing- I was sent to a high risk doctor during my first pregnancy b/c they thought my daughter had IUGR and was small for dates- she was small for dates because their little pregnancy wheel does not take in to account that I ovulated very late that month, so of course she was smaller than what the wheel said she should be, <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/lol.gif" style="border:0px solid;" title="lol">
 

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I was aware of this. Used to live with a CNM though.<img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/wink1.gif" style="border:0px solid;" title="wink1"><br><br>
It's the only firm date "they" have to work with, which is why keeping track at some level of your ovulation signs, if you get them, can be important.
 

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<div style="margin:20px;margin-top:5px;">
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<div>Originally Posted by <strong>mamasgirls</strong> <a href="/community/forum/post/8993588"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">Yes, I knew this- it can cause A LOT of problems if you don't ovulate around day 14.</div>
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Yes I knew it too, but only since becoming a mama and reading info about it. I was oblivious before. <img alt="" class="inlineimg" src="/img/vbsmilies/smilies/duck.gif" style="border:0px solid;" title="Duck">: And the late-O is also why I'll edit my LMP to "fit" with my O date, when I conceive that is. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile">
 

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Yep...I think one of the times people start to realize there are different calculations is when people wonder when the 2nd and 3rd trimesters start (like 12 weeks by development, 13.3 weeks gestational, and 14 weeks by conception.<br><br>
Here's a good calculator:<br><a href="http://www.ivf.ca/calcu.htm" target="_blank">http://www.ivf.ca/calcu.htm</a><br><br>
ETA- I don't O on CD 14 either...so I just add however many days to the DD my LMP gives me.
 

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<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>mamasgirls</strong> <a href="/community/forum/post/8993588"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">Yes, I knew this- it can cause A LOT of problems if you don't ovulate around day 14. If you ovulate on day 21, for instance- they would be calling you 3 weeks pregnant when you are ovulating. It doesn't seem like a big deal until you hit 40 weeks and they are breathing down your neck because you are "overdue" even though you are technically 39 weeks (37 gestational age). It does get confusing- I was sent to a high risk doctor during my first pregnancy b/c they thought my daughter had IUGR and was small for dates- she was small for dates because their little pregnancy wheel does not take in to account that I ovulated very late that month, so of course she was smaller than what the wheel said she should be, <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/lol.gif" style="border:0px solid;" title="lol"></div>
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Back in 1999, I had a hard time convincing the nurses and other hospital staff that I wasn't due in August, but rather October, as my last period WAS November 5th. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/lol.gif" style="border:0px solid;" title="lol"> But ... I wasn't pregnant then! D'oh! Ultrasounds later confirmed, of course. I WISHED I was due then, as that's just about the time I went into premature labor and they SURE weren't going to let me deliver at 30 weeks!
 

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<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>PerkyKP</strong> <a href="/community/forum/post/8997472"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">Yes I knew it too, but only since becoming a mama and reading info about it. I was oblivious before. <img alt="" class="inlineimg" src="/img/vbsmilies/smilies/duck.gif" style="border:0px solid;" title="Duck">: And the late-O is also why I'll edit my LMP to "fit" with my O date, when I conceive that is. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile"></div>
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I did this, too, with my 2nd dd and will do it if/when we have #3! It takes a lot of that unneeded stress away! I didn't know to do it when I was pg with #1.
 

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Discussion Starter · #10 ·
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>1babysmom</strong> <a href="/community/forum/post/8998889"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">ETA- I don't O on CD 14 either...so I just add however many days to the DD my LMP gives me.</div>
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Same here, in fact its usually 10 days later if not more. Thats why I like being able to use calc that take fertility signs into consideration. I'd go by that information and just give the made up day of LMP to a doc if needed to keep them on the same page. I've had some docs that refuse to consider the charting information and are very set to their handy-dandy wheel to be the ultimate authority. Maybe that has changed and charting fertility signs is gaining more acceptance (it didn't seem to be 10 years ago when I started).<br><br>
With the pressure for women to deliver on or right at their due date (event though 42weeks is normal!), thats not something I want to put up with if I know I have more time to go.
 

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<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>xixstar</strong> <a href="/community/forum/post/9002028"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">I've had some docs that refuse to consider the charting information and are very set to their handy-dandy wheel to be the ultimate authority. Maybe that has changed and charting fertility signs is gaining more acceptance (it didn't seem to be 10 years ago when I started).<br><br>
With the pressure for women to deliver on or right at their due date (event though 42weeks is normal!), thats not something I want to put up with if I know I have more time to go.</div>
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Nope, I don't think it's changed in many places. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/greensad.gif" style="border:0px solid;" title="greensad"><br><br>
I agree about the DD pressure. I've actually decided that when I get pg again, I'm not even going to find out my DD...but just give myself a "due month." <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/lol.gif" style="border:0px solid;" title="lol">
 
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