I have a close friend who just found out
that she is pregnant. The first day of her
last period was on september 7. Her cycle
is an average of 31 days. She had
intercourse on the 22nd of September where
ejaculation took place inside the vagina
and then she had intercourse again on the
28 where ejaculation took place outside
the vagina. She said she wasn't feeling
right and took an at home pregnancy test
(First Repsonse, the ultra sensitive test
that can detect the Hcg hormone in urine
up to 5 days before the missed period) on
the 2nd of October, 5 days after she last
had intercourse and it was postive. What's
the likelihood that she conceived on the
28? Is it more likely that she conceived
on the 22, 23, or 24 of september? I am
trying to help her figure out what her due
date is. She has taken multiple urine test
at the doctors and so far they have come
out negative. The nurses said their tests
aren't as sensitive as the ones you can
buy. She has also taken 10 at home
pregnancy tests all positive.
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Ingi
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Joined: 09 Mar 2006 Posts: 8920 Location: Grinning like a Cheshire Cat,
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Posted: 10-09-07 13:54pm
Her due date goes by the first day of her
LAST period. It doesn't matter when she
had intercourse.
Have the doctors decided to give her a
blood test then?
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cln1812
Active User, Really EHEALTHy
Joined: 15 Jul 2006 Posts: 528 Location: La Porte, TX
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Posted: 10-09-07 19:14pm
She most likely conceived around the 22nd.
It usually takes 7-10 days after
fertilization for the egg to implant in
the uterus, and that is when hCG (the
pregnancy hormone) really begins to be
produced (enough to pick up on tests),
even then, it usually takes another 3 days
or so after implantation to get a positive
test. They will usually date the
pregnancy by the last day of the menstrual
period and will change the due date if an
early ultrasound (around 7 or 8 weeks)
gives a discrepancy of more than a week.
But with 31 day cycles, there may not be
much discrepancy from the first date of
her last period.