My due date is January 17 and I want know when I conceived

My due date is january 17 and i want know when i conceived

First Day of Last Menstrual Period: April 12, 2012; Probable Date of Ovulation: April 26, 2012; Possible Dates of Conception: April 22 to April 30, 2012; Due Date: January 17, 2013 (40 weeks)

The conception (and birth) dates obviously vary.