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Re: Curious about Conception Date versus U/S

From: anonymous (anonymous@obgyn.net)
Thu, 29 Nov 2001 21:21:08 -0600 (CST)


At Thu, 29 Nov 2001, R. Daniel Braun, MD wrote: >
>At Thu, 29 Nov 2001, anonymous wrote:
>>
>>O.k., here are the facts: LMP - Started late evening Oct. 3
>> Unprotected sex Oct. 13, 14, 21 & 22
>> Sex using (early) withdrawal Oct. 18 & 20
>> Took HPT Nov. 3 - negative
>> Took HPT Nov. 6 - positive
>> Had U/S Nov. 26, they dated 7.4 weeks
>> The intake nurse used a dial and told me
>> Oct.18 was our most probable conception date.
>> She said the early U/S almost guarantees it!
>> I'm skeptical...what do you experts think?
>> Thanks for indulging me, I'm very curious
>> about our conception date. This a great site!
>
>If you are 7.4 weeks (Plus or minus 5 days)[that is all the more
>accurate US is at this stage.], then conception (Egg meets sperm in the
>fallopian tube) occurred 5.4 (Plus or minus 5 days) weeks ago. Whatever
>date that was.
>The episode of intercourse that deposited the LUCKY sperm could have
>been as much as 5-7 days prior to that or as little as 6 hours prior to
>that.
>So which day was it ????

Thank you so much for your reply, Dr. Braun, but please indulge... 5.4 weeks before my U/S was Oct. 18...the date the intake nurse came up with on the sliding dial. So...my question is...my husband withdrew in plenty of time that evening of Oct. 18th...do you think it is still most probable that I conceived from that session? Or, that Oct. 13, 14, 21 or 22 are more probable because we used no form of contraception? Thanks again!> >
>--
>R. Daniel Braun, MD FACOG FOG
>
>This is for educational purposes only, and is not intended to be replacement or substitute for consultation and examination by an appropriate medical professional. Due to time constraints, private e-mails cannot be answered.
>






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