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Re: Due Date CalculationFrom: anonymous@obgyn.netThu, 29 Jul 1999 15:47:04 -0500 (CDT)
At Wed, 28 Jul 1999, Heather wrote: > >My last period started 6/11/99 I have been charting my temps etc. I had >a drop in temps and minimal spotting around day 35 of this cycle and >thought I just didn't ovulate and would get my period. On day 37 temps >went up well above where they had been and last night I tested positive >on HPT. I called my Dr. and they gave me a tentative due date of 3/18. >I realize these are based on ovulation around day 14, wouldn't that make >my due date about 3 weeks too early??? I have my initial appt. with the >nurse tomorrow and will ask her, but just curious for some feedback on >this forum. The EDC of 3/18/00 is based on the first day of your last menstrual period, as this is the standard method for dating pregnancies. As we all know, ovualtion is not until 2 weeks later, give or take a bit, but we use a standard protocol for all pregnancies so that we can compare apples with apples so to speak. Remember, this system is only accurate to +/- 2 weeks anyway, so a day or two's variation is not significant. Good Luck with your pregnancy!
-- William D. McIntosh, MD
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