The Naegele rule is a simple mathematical formula by which the estimated date of delivery (EDD) can be determined. The last menstruation period (LMP) is taken into account.
In the example in the image, the LMP for the woman was May 21, 2019. For this reason:
- To find out the day: 21 + 7 days.
- To calculate the month: 5 - 3 months.
- As necessary, add one year.
The resulting EDD would therefore be Feburary 28, 2020.
Read the full article on: How Do I know When My Baby Will Arrive? ( 61).
By Antonio Forgiarini M.D., M.Sc. (gynecologist), Daniel Sosa M.D., M.Sc. (gynecologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Silvia Azaña Gutiérrez B.Sc., M.Sc. (embryologist) and Romina Packan (invitra staff).
Last Update: 10/21/2019
