I found this chart from the Lancet, the British medical journal. That is where the Weekend Australian must have got their information from.



It is that huge difference between 11 weeks and 12 weeks that really blew me away and had me wondering why my medical centre were pressing me to get it at 11 weeks instead of 12. I'm actually wondering now if I wait another month instead of another week whether that line keeps shooting up. Logic tells you it would. The only reason they stop at 12 weeks is because that is all they collected the data for.