round about the 2nd may 2010
January 21st.
19th January 2011? That would make your conception date roughly April 27th
9 months prior or aproximtely April 21st.
around march 21st
Probably around January 14.
Roughly April 11th
April to early may.
Your sentence structure is flawed.
29th may
That would make your estimated conception date January 19th 2011. However, this is give or take a few days. Often it depends on when you ovulated as well.
Around the 29th of january
On or around the 6th of April.