It means that you're not actually pregnant for the first two weeks of the 40 weeks of pregnancy. They call it 40 weeks, but you actually concieve at week 2, so it's a freebie :)
So if you were told you were 2 weeks pregnant, they probably meant 2 weeks after ovulation/conception, which is 4 weeks pregnant. I know, it's very confusing lol. I don't know why they do that.
at 9:50 PM on Nov. 21, 2010