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Calculating due date

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Old 08-20-2004, 08:39 PM   #1
fatally yours
Join Date: Jul 2004
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fatally yours HB User
Calculating due date

How's it done exactly? I can't remember if they start counting on the day of your last period, or if it's the date you ovulated. My last period started on July 15, and I ovulated on either the 25th or 26th. I did an online due date calculator and one said April 20th and the other said April 21. So how far along would that make me right now? I know that I'm farther along than I originally thought. For some dumb reason I thought I was 3 1/2 weeks, but it's gotta either be 6 weeks (going by day of last period) or 4 1/2 (going by day of ovulation).

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Old 08-21-2004, 12:51 AM   #2
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Lawgirl HB User
Re: Calculating due date

I ovulated on July 20 and I am due April 12 (38 weeks after o, or at 40 weeks). On Saturday I will be 6weeks 4days. If you ovulated on July 25 you would be 5 days behind me, so on Saturday 5w6d. If you have know your o date, I think that is probably more accurate. Start from o date, count how many weeks from o, and then add two weeks and that's how far you are.

I know it doesn't make any sense, but does that help?
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Old 08-21-2004, 12:38 PM   #3
fatally yours
Join Date: Jul 2004
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fatally yours HB User
Re: Calculating due date

Thanks, Lawgirl! Makes sense to me. I ovulated on either the 24th or the 25th, I'm trying to remember which. My cycles were always 27 days, and my ovulation day would vary between the 11th and 12th day of my cycle. But if I remember right, I think I ovulated on the 11th day, so that'd be the 24th.

So that would make me... 6 weeks exactly today! Wow! Thanks for your help!

Last edited by fatally yours; 08-21-2004 at 12:39 PM.

Old 08-21-2004, 08:04 PM   #4
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Mommy2Isaiah HB User
Re: Calculating due date

The "clinical" way of doing this is to count back three months from the day you started, and add 7 days.

Just thought I'd add that in.
EDD 6/29/05
Isaiah 5/21/99
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