Based on a normal gestation period of 40 weeks the conception date was April 13th, of the previous year.
You probably conceived between January 7th and January 15th
Roughly April 11th
April to early may.
Probably around January 14.
Your sentence structure is flawed.
May 2009
January 21st.
~5 January, give or take.
On or around the 6th of April.
Around the 29th of january
round about the 2nd may 2010
June 18 2006