Need to calculate your due date? Check out the FREE American Pregnancy Association pregnancy calculator to help you predict your due date. Put your LMP and average cycle length in the pregnancy calculator and we will provide an estimate of when your baby should be born.
Naegele’s Rule - The rule estimates the expected date of delivery [EDD]. 1st- Calculate the date of your LAST MENSTRUAL PERIOD. The 1st day of your last period. This is very important, so remember CAREFULLY! Let’s use today’s date as our example. LMP: Month 08/ Day 03/ Year 2011 2nd- Subtract 3 months / add 7 days / add 1 year [and yes, you may use your fingers to count, if you’d like.] Answer: Month 08 - 03 = 05 Day 03 + 07 = 10 Year 2011 + 01 = 2012 Due Date: 05/10/20