Health & Fitness
Basic

Due Date (Naegele)

Estimated delivery date from last menstrual period.

Formula

EDD=LMP+280 days\text{EDD} = LMP + 280\ \text{days}

Variables

LMPLast menstrual period

Example

+40 weeks

Did You Know?

Naegele's rule sets the due date 280 days from the last period, yet only about 4% of babies arrive on it.

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