Question

A woman arrives at the clinic for a pregnancy test. The first day of her last menstrual period (LMP) was February 14, 2013. Her expected date of birth (EDB) would be: _________

a) November 21, 2013.
b) October 17, 2013
c) December 9, 2013
d) November 7, 2013

Answer 1

a) November 21, 2013

Step-by-step explanation:

The expected date of birth (EDB) would be calculated using Naegele's Rule and it is based on a normal 28 days menstrual cycle. The steps are as follows:

First, we need to identify the first day of the last menstrual period (LMP). Then we would count it back to three calendar months from that date. Finally, we would add 1 year and 7 days to that date.

In which case, the first day of LMP is February 14, 2013. Going back three months the date would be November 14, 2012. Finally, when we add 1 year and 7 days it would bring you to November 28, 2013, as the estimated due date.