Re: Just how old is this embryo anyway??
From: Harvey S. Marchbein, M.D. (anonymous@obgyn.net)
Thu, 30 Nov 2000 20:44:13 -0600 (CST)
Your confusion is that there is no confusion (what did he say?)
Menstrual age is the weeks since your period. Gestational age is the
weeks since your last period and - guess what? Ultrasound measurements
are based upon size of a fetus since ........... your last menstrual
period.
Cool, huh?
the sono/dates discrepancy is 6 days. 3-4 days is acceptable at this
point. they may alter your due date.
Hope this helps and write back anytime for more information.
HSM
At Thu, 30 Nov 2000, francy wrote:
>
>OK--this is a difficult question!
>
>According to my LMP I am 9 weeks, 4 days pregnant.
>
>According to my ultrasound measurements, I am 8 weeks 5 days pregnant.
>
>Here's the confusing part: the ultrasound age CANNOT be the same as the
>gestational age, right? Because that would mean I was pregnant about a
>week BEFORE I even ovulated.
>
>So what is the significance of the 8w5d? It isn't menstrual age, and it
>isn't gestational age either.
>
>Just how old is this embryo anyway??
>
>Thank you for any clarification!
>
>--
>Francy Hammond
>
--
Harvey S. Marchbein, M.D. FACOG, FACS
Great Neck, New York
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