I went to http://www.intmed.mcw.edu/clincalc/pregnancy.html and put in a due date of Sept 18,2007 and it shows conception date of Dec. 26, 2006. Remember that is based on a 28 day cycle so add or subtract days depending on how long your cycle is. Also, sperm can live in a womans body for 3-5 days, so it can be from sperm from days before that. congrats on the pregnancy =) The answer to this question is simple... If the doctors set it then there is no real way of knowing you would just know the general month which would be December of 2006.
Jan 7, 2007
Approximately Saturday, October 27, 2007.
Roughly October 15th
october 25th
Your LMP would be about October 8, 2007, so you would've conceived sometime around October 22, 2007.
The approximate date of conception was October 24th
~5 January, give or take.
Around the 29th of january
June 18 2006
My due date is July 4th 2009 and we conceived October 11, 2008.
Roughly Wednesday February 6th 2008
Somewhere around January 10