March 8th 2010? That would make it roughly June 14th, give or take a few days. However, it is difficult to accurately say when a conception date is. Therefore, I suggest talking to your doctor, midwife or obstetrician about it.
March
Count back nine months from your due date.
march 21
Roughly March 6th
in march
Roughly June 8th
The approximate date of conception was June 17th
The approximate date of conception was June 13th
The approximate date of conception was March 4th
The approximate date of conception was June 28th
Date of conception was March 31st
March 1, perhaps.