Pregnancy & Baby: Due date calculator

Pregnancy & Baby Index: Pregnancy - Trimester 1: Due date calculator

Due date calculator

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When is your baby's due date, and when are you most fertile?

Do you want to know when your baby will arrive? Or when conception occurred? Enter the date of the first day of your last menstrual period (LMP), cycle length and your luteal phase length (if known), and we will do the calculation for you! Your browser must be Java-enabled for the calculator to work.

Fill in your information here

Last menstrual period (LMP):	(MM/DD/YYYY)
Cycle length (avg):	(22 to 45)
Luteal phase length (avg):	(9 to 16)

Estimated date of conception:
Estimated due date:
Baby's estimated age now:

Be sure to keep in mind that any due date is only an estimate -- and only about 5% of babies actually arrive on the date they're "due." Your caregiver will typically assign your due date based upon a 28-day cycle.

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Important notice: The Pregnancy & Baby site is for educational purposes only, and presents information of a general nature. This is not medical advice. If you are concerned about your health or the health of a family member, or have questions about whether or not you are pregnant, please consult with a healthcare professional. This information is not a substitute for personal medical attention, diagnosis or treatment. Coincide Media, LLC accepts no responsibility for damages resulting from the use of this information and make no warranty or representation, either express or implied, including but not limited to, any implied warranty of merchantability or fitness for a particular purpose. This information is provided as is, and you, its user, assume all risks when using it.