If you are having 28 days cycle then according to your due date of 4th November, your first day of last menstrual period can be 29 Jan, 2008 and ovulation date can be 12th Feb 2008, So your most probable date of conception can be 12the Feb 2008.
If I am due on the 3rd of November when was my baby conceived
November 25 2010
My Due Date Is The 16th Of March 20010
Due date april 21st 2010