The question was asked on Thursday the 21st of August 2014, so the answer for that date would be Sunday the 13th of July 2014.
As today is January 11, 40 weeks and 4 days ago would have been April 2.
August 28, 2012
Twelve weeks and four days ago. There's seven days in a week, so 12 weeks and four days is 88 days ago. 88 days ago, from today, was 2021-04-12.
Ultrasound gives an estimate of the age of the foetus. At this stage of the pregnancy, it's quite accurate, but it's still only an estimate, and the date of conception could be a few days, even a week, away from the date 19 weeks and 2 days ago.
Erm ... 20 weeks and four days ago ... Dohh!! Look at a calendar and count backwards 20 weeks, then backwards 4 days - there is your estimated date of conception.
31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.31 weeks and 4 days.
As of the date this question was asked, May 4, 2011, subtracting 70 weeks gives December 30, 2009.
519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.519 weeks and 4 days.
4th of September...?
3 weeks = 21 days October 4th + 21 days = October 25th
1 week = 7 days 46 divided by 7 = 6 weeks 4 days
99% probability it was between 10 weeks & 10 weeks and 4 days ago.