"When am I due?" |
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This is
probably the number one question on your mind as soon as you find
out you are pregnant. Find out how your due date is calculated here!
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Every month, typically
14 days before the first day of your period, one of your ovaries
releases an egg (ovum). The sperm has 24-48 hours to fertilize the
egg. If the egg is not fertilized, conception does not occur and
you will get your period on schedule. If you don't... congratulations!
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The Calculation The standard method to calculate your official due date is to count ahead 280 days from the first day of your last menstrual period (LMP). A second method for calculating your due date you can probably do in your head! Just take the date (day number) of your LMP and add 7, then subtract three months. |
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For example: LMP: April 14
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| Your LMP: _______________________ Add 7: __________________________ Count back 3 months: _______________ |
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Where
these numbers come from
These methods assume you have a 28-day menstrual cycle: Day Number 1 Your period begins (LMP) Day number 14 Conception occurs Day number 28 Next period due Pregnancy tests might be accurate this early You're 1 month pregnant! |
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| The 280-days rule is based on 266 days of gestation (length of actual typical pregnancy, from conception to birth), plus the previous two weeks - from the first day of the last menstrual period until conception, for a total of 280 days. | |
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