Hi Sakoon,
I am having my nuchal fold test for downs on Monday. I will be 11wks and 4days. They are going to do the bloods and the scan on the same day. I am only 25 but want get it done just for the peace of mind like puppies said. I had my first bloods done for all the normal testing and levels of everything and I have O negative blood too. When is your duedate? I think we might be around the same time. Mine is 27th Feb (thank goodness its not a leap year next year)! Good luck with your pregnancy.