31st March or thereabouts
Subtract fourteen weeks (7 days x 14) from the date of the ultrasound.
32 days previously
99% probability it was between 10 weeks & 10 weeks and 4 days ago.
just 11wks and 6 days before october18
Conception dates can be worked out from the due date....you can send me a message with your due date and I can work it out for you if you want?
around march 21 but no one can be 100% certain
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.
16 weeks and 5 days before April 4, 2013 was Saturday, December 8, 2012.
The 11 weeks 5 days refers to the first day of your last period. You probably concieved around 9 weeks 5 days ago.