Okay I did that Bellybaby due date calender and now Im more confused! Here are my results..
Results: Your estimated due date is 04/11/07, which is 222 days from now.
Your pregnancy will be full-term until 18/11/07.
The estimated date of conception is 11/02/07.
The estimated fetal age is 8 weeks and 1 days.

The estimated date of conception is spot on I'm just confused how they can say the fetal age is 8 weeks when that is before the date of conception?
When you talk about how many weeks pregnant you are I thought it would go from the date of conception? Aagh I have no idea!!!!