Your estimated conception date is May 28th 2011. However, this date could be out by a few days. It also depends on the date on which you ovulate (release an egg).
Around the 29th of january
The approximate date of conception was May 2nd
Roughly April 11th
April to early may.
Probably around January 14.
Your sentence structure is flawed.
~5 January, give or take.
January 21st.
On or around the 6th of April.
I will assume you are talking about January 10th 2012. If so, this makes your conception date roughly April 18th 2011. However, this date is give or take a few days. It also depends on when your ovulation date was.
When did I Concorde if I'm due aug 27 2012
November 9 2011