Ok this will be shorter this time since the monkeys stold my thought out long post.
1st, dont lose hope bc both my DD ultrasounds had the same 3 lines and I can see how this could still be a girl.
2nd, i met with my PGD doctor yesterday and he told me that out of the 90 PGD cases they have done in the last few years that 2 of the 90 turned out wrong. This is because not every cell in some people are the same. For example, 1 of those 2 cases the embryo came back normal for downs and after transfer they found out the baby had downs (not every cell in some rare cases shows the downs and the 1 cell they happen to test and even re-tested later on didnt have the downs) The 2nd case was a gender opposite and he said that its very, vary rare but the one cell they chose to test came back girl and even though any other cell they may have chosen could or may have shown boy that in some rare cases this can happen). I hope that makes sense, but I guess thats why they say PGD is 99.9% accurate.