Assuming you mean 2009 - you conceived Wednesday 30th July 2008 - 40 weeks before.
approximately, July 15th
So her due date was 20th January 2008? Her conception date was roughly Sunday 29th April 2007
The approximate date of conception was August 6th
Saturday July 14th 2007, roughly
July
count 11 weeks back from April 26 and that will be your date of conception
The approximate date of conception was April 18th 2009
On or around the 6th of April.
April
July 17,2008
The approximate date of conception was April 27th
I believe its 9 1/2 months prior if the baby is carried to term and is born naturally.
Roughly April 11th