Silly LMP/date question - Mothering Forums

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#1 of 4 Old 02-28-2009, 05:00 PM - Thread Starter
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Ok, I have a silly question for you. When I went for my "pre-ob" visit to the midwife's office, she said something that confused me. So, I thought I'd ask you guys what I am missing.

MY LMP was Monday, January 5th. The appointment at the MW office was Thursday, February 12th. While she was writing everything down, she said..."Oh, you are exactly 5 weeks today". I didn't say anything at the time, but I don't get it. Wouldn't it have been 5 weeks on that Monday? Why the extra days?

It doesn't really matter all that much, it's just annoying me. I can't figure it out and I'm sure it's something simple. Can you guys help?! I feel dumb.

Proud mom of Dylan born 10/10/09
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#2 of 4 Old 02-28-2009, 05:39 PM
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Yeah, that doesn't make much sense!

Do you know your ovulation date? Do you have 28 day cycles? I have a bit longer cycles, around 32 days or so, and I conceived on cycle day 17. That was a Sunday so every Sunday I count myself one more week along.

If you have a 28 day cycle & weren't charting, it can be assumed that you conceived exactly 2 weeks after your LMP, which would've been Monday the 19th. Every Monday you should consider yourself one more week along. I can't even imagine a reason the MW would have said that unless you knew that you ovulated/conceived on a Thursday! Seriously, maybe she was just looking at her calendar upside down & backwards.

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#3 of 4 Old 02-28-2009, 05:49 PM
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She was probably just looking at numbers.
Jan5-Feb5---->4 weeks (1 month)
Feb5-Feb12--->7 days (1 week)

total of 5 weeks. I'm sure she didn't get it from your chart or her wheel, but was just making small talk.


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#4 of 4 Old 02-28-2009, 07:41 PM
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Different offices calculate due dates differently. My OB calculated some weird way where he added 7 days to my LMP and then added 266 days or something like that. Ask how they calculate due dates and it will likely make sense.

Stephanie-33 lucky mama of 5 precious ones: DD-12, DS-9 , DS-6 , and DD-3 and Bridget Alannah  SHE'S ONE NOW! loving wife to DH-38
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