EDD (Expected date of delivery)

Negele's formula -:
- Add 7 days to 1st day of last menstrual period (LMP).
- Subtract 3 months.
- Add 1 year.

Expected date of delivery is estimated by negele's rule.
( Not applicable in Jan, Feb and March )

           Example -
                                  LMP        10  /  07  /  2011
                                                 +7     -3        +1    
                                  EDD         17 /  04  /  2012

Que. -  What is the simple method of EDD ?

 Ans. -  Simple method of EDD - 
                                                      LMP + 9 months 7 days