When did you conceive if baby was 38 weeks and 4 days on March 23 2012?

To calculate the conception date, subtract the number of days/weeks of gestation from the given date.

Given date: March 23, 2012

Gestational age: 38 weeks and 4 days (which equals to 268 days)

Conception date: March 23, 2012 - 268 days = June 21, 2011

Therefore, the conception date was June 21, 2011.