Paternity: is the baby mine? Posted: 01-12-07 13:14pm
I was with this girl for about 1 year. We
broke up and eight months later she came
back for a few days..These days were
Aug29-31st. We had sex on the 29th..A
couple of weeks later she ended up
pregnant..The original due date was May
22nd which brings the date of conception
to Aug 29th. A few months later the due
date has been moved to May 20th..Because
of this..she is certain that the child is
not mine..She says her doctor has
guranteed her that the child wasn't
concieved on the 29th of August and she
refuses to take a paternity test because
of that..Can the dates be that exact or is
there a good chance this baby is mine?
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DoctorAnswer
Doctor Answer
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Pregnancy Answer A2159 Posted: 01-22-07 04:11am
It is very important to know the date when
your former girlfriend's last menstruation
began and usual duration of her cycle. An
ultrasound apparatus does not calculate
the age of a pregnancy according to the
calendar but measures the fetal dimensions
and compare them with standard values. The
results from such a calculation can be
different than an age calculated with the
calendar because fetal growth is not
always standard during pregnancy. No
doctor can guarantee an exact conception
date. Conception usually occurs 2 weeks
after the beginning of the last
menstruation (around ovulation) if the
cycle lasts 28 days (as in most women). If
we accept the 22nd of May as a due date,
then her last menstruation probably began
on August 15th. This puts the conception
date around August 29th. If the due date
is the 20th of May, the conception day
will be mathematically 2 days earlier.
These mathematical calculations can’t be
100% sure. Only a paternity test can
identify the real father. Your former
girlfriend might be hiding something and
this might be the real reason she's not
interested in a paternity (DNA) test.
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