Work at Home Success By Jill Hart
Mom Laughs By Cheryl Moeller
Simplifying Motherhood By Trish Berg
Ask A Twin Mommy By Cheryl Lage
Mothering By Heart By Cheri Fuller
Jelly Mom By Lisa Barker
Family Check-up By Sheila Wray Gregoire
Parent to Parent By Jodie Lynn
Moments for Mom By Elisabeth Corcoran
Making the Most of Marriage By Paula Friedrichsen
Due Date Calculation
By Rachel Lower
To estimate your due date before you go to the doctor for examination and an ultrasound (which is very accurate in determining the age of an unborn child), you will need to know the date of the first day of your last period. The methods here are based on the average 28-day cycle.
If you are a mathematician, the following formulas can give you an
answer:
Date of the first day of your last period + 281 days = due date, or
Date of
the first day of your last period + 7 days - 3 months = due date
Pregnancy, on average, lasts 267 days (38 weeks) from conception. If you positively know your conception date, you can add 267 days to it for your due date.
Or do it the easy way:
Click here to open the calculator!
OR
Click here to use the
due date chart!
To use the due date chart, find the first day of your
last period on the non-underlined rows and the date directly below on
the underlined row is your estimated delivery date.
© Rachel Lower, 1999-