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Discussion Starter · #1 ·
I had my first postpartum period April 14, when my son was 14 months old. I bled 3 more times in the next month, not full periods, just a few days at a time, of heavy spotting.<br><br>
I do know when I ovulated. But I am wondering how a dr would calculate this with no last period to go by. Just early ultrasound?
 

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An ultrasound or by fundal height.
 

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They will probably suggest an ultrasound, although they are only accurate within 2 weeks or so. If you know when you O'd, let your doctor know what date that was, your due date should be calculated from that anyways.
 

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my midwife is going by when i think i ovulated. i have long cycles and ovulated on day 25/26, making a difference of almost 2 weeks in pregnancy. we also decided taking the later date would give me a better chance of not being "overdue."<br>
most doctors will at least NOTE your ovulation date if its in conflict with the dates based on lmp. other than that, the only definitive way to know is u/s.
 

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yeah, i'd either tell them the date you ovulated or if you have one of those ob's who don't think a woman could possibly know such a thing, then i'd subtract 14 days from the day you o'ed and tell them that was the first day of your last period.<br><br>
congratulations!
 

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<img alt="" class="inlineimg" src="/img/vbsmilies/smilies/truedat.gif" style="border:0px solid;" title="Truedat"><br>
I was going to say the same thing. If you think your ob will believe that you know when you ovulated, tell them that. If not, or if you have a shadow of a doubt, make up a period date that's 14 days prior to the date of ovulation.<br>
With this pregnancy I ovulated a few days earlier than I normally did. When my midwife calculated my due date with the wheel, she then subtracted 3 days. I was astonished because my old ob would have never done such a thing <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/wink1.gif" style="border:0px solid;" title="wink1"><br>
Interestingly enough, at my 20 week u/s the EDD that they came up with was the SAME DATE as what I had based on ovulation.<br>
I think that's the only time where an u/s has predicted a due date and has actually been accurate.<br>
Of course babies come whenever the heck they want. I think after 36 weeks it's fair game <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile"><br>
Good luck!
 

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Discussion Starter · #7 ·
I do plan to tell my dr my O date. He is great, and I know he'd have no problem with that!<br>
I did have an early u/s last time( 7 weeks) and the due date it gave me was right on with my O date! I was amazed too! never had a due date that correct! And of course there is the case of them pesky babies wanting to come whenever they want! LOL<br><br>
I dont plan to see the dr for another month at least, maybe more since I am still so early. Just wanted to see your thoughts on this. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile">
 

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i had a u/s at 9 wks to date this pregnancy, since I got pregnant while nursing my 17 mo old and had just had my first pp af. my midwives are going with that date, and it seems correct, but they are flexible.
 

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<a href="http://www.mothering.com/discussions/showthread.php?t=288549" target="_blank">http://www.mothering.com/discussions...d.php?t=288549</a><br><br>
Thats a thread that was about this recently.<br><br>
Michelle
 
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