Pregnancy Calculators

10 Moons Rising Birth Consulting and Education

Pregnancy Calculators

Baby Due Date Calculator



Here are four different methods of calculation that both midwives and doctors use. While no method is 100% correct, these are methods to show estimated dates of delivery.

280-day method.

Enter the date of the first day of your last period.

If this is your first pregnancy, check here:
Month:	Day:	Year:	Your due date is:
	,

(The 280-day method calculates the baby's due date to be 280 days from the first day of your last period (LMP).)

Nagel's method.

Enter the first day of your last period.

Month:	Day:	Year:		Your due date is:
	,

(Nagel's method calculates the baby's due date according to the following formula: LMP + 7 days - 3 months + 1 year.)

Wood's method.

Enter the first day of your last period and the deviation + or - from a 28 day cycle.

If this is your first pregnancy, check here:
Month:	Day:	Year:	Deviation:	Your due date is:
	,

(Wood's method calculates the baby's due date according to the following formula: LMP + 1 year - 2 months, 14 days +/- deviation from the standard 28-day cycle.)

Quickening method (from first sensation of movement).

Enter the date you first felt the baby move.

Month:	Day:	Year:		Your due date is:
	,

(The quickening method calculates the baby's due date to be 5 months from the date the baby first moved.)




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