Question

A woman states that her last menstrual period was from April 5th to April 11th, 2014. What is her estimated date of birth?

A) January 5, 2015
B) January 12, 2015
C) December 5, 2014
D) January 12 2014

Answer 1

The estimated date of birth for a woman whose last menstrual period was from April 5th to April 11th, 2014, is January 10th, 2015, which corresponds closely to the answer choice B) January 12, 2015.

Step-by-step explanation:

If a woman's last menstrual period was from April 5th to April 11th, 2014, her estimated date of birth can be calculated using the standard method of obstetricians who set the due date as about 280 days (40 weeks) from the first day of the last menstrual period (LMP).

This is based on an average cycle length of 28 days with ovulation and conception presumed to occur around day 14 of the cycle. Therefore, if we add 280 days to April 5th, 2014, we get an estimated due date of January 10th, 2015. The closest answer choice to this estimation is B) January 12, 2015.