38 weeks and 4 days before the 13th of March 2012 was Friday the 17th of June 2011.
March 13th 2010? That would make your due date roughly December 18th
Based on a normal gestation period of 40 weeks the conception was on March 5th
Based on a normal gestation period of 40 weeks the conception date was June 29th.
Based on a normal gestation period of 40 weeks the conception date was June 28th
Based on a normal gestation period of 40 weeks the conception date was March 27th
Based on a normal gestation period of 40 weeks the conception date was June 22nd 2009
Based on a normal gestation period of 40 weeks the conception date was June 19th 2009.
Based on a normal gestation period of 40 weeks the conception date was June 28th of the previous year.
Based on a normal gestation period of 40 weeks the conception date was June 30th
I will assume you are talking about December 3rd 2011. If so, that makes your estimated conception date March 11th 2011. The estimated conception date is not always completely accurate. It is often wrong by a couple of days.
Somewhere around the end of March.
No, you count back 38 weeks for the conception date, but don't forget this is just an estimate.