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Replacement Centre
Pregnancy Calculator
Use the Pregnancy
Calculator to:
#
Determine the due date
#
Calculate the likely
conception date
#
Calculate the end of the
first and second trimesters
#
Find out for how many weeks
have you been pregnant
#
Calculate how many weeks you
will be pregnant on a given
date
#
Calculate on which date you
will be pregnant the
specified number of weeks,
and
#
Determine the likely
conception date when you
know the birthday or due
date.
How to use the Pregnancy Calculator
Enter the date of your last menstrual period and the
number of days in your menstrual cycle into the
pregnancy calculator, and click on the Calculate button.
Other calculations are optional - use them when needed.
On average, there are 28 days in a menstrual cycle, but
it can last from as little as 22 to as many as 44 days.
The Pregnancy Calculator takes your menstrual cycle into
account when calculating the due date and the conception
date.
Also, the Pregnancy Calculator needs the number of days
in your menstrual cycle when calculating the likely
conception date from the given birthday or the due date.