To predict the possible ovulation date you
need 2 pieces of data: the last
menstruation date (the first day your
period began) and the regular duration of
the menstrual cycle. We can never know
exactly how long a menstrual cycle will
last but we can assume an average duration
if the woman has regular cycles/periods.
If we know the cycle’s duration and the
date the last period began, we can assume
the date of the next expected menstruation
(period). A possible ovulation date is
defined according to the next EXPECTED
period date, not according to the date of
the last menstruation. The rule says that
ovulation happens about 14 DAYS BEFORE THE
NEXT PERIOD comes. This means that
ovulation will happen 14 days after last
period date only if the cycle’s duration
is 28 days. If the cycle lasts 21 days,
the ovulation will occur 7 days after the
first day of the last period (21-14). If
the cycle lasts 35 days, the ovulation
will occur (35-14) 21 days after the first
day of the last period. In your case, it
is impossible to predict ovulation date
because you didn’t gave me the data
about cycle duration.
A pregnancy test becomes positive after
implantation, about 8-10 days after
conception (fertilization of the
egg-cell). In your case, it is possible
that you conceived on the 18th of August.
because exactly 8 days had passed until
pregnancy test became positive on the 25th
of August.
I have to potentate that all these dates
are predictions and they are not 100%
sure!
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