Got my Mat21 results and only took a week total- tested on Tuesday, got results this Tuesday. Everything came back clear, such a relief for me given my age and increased chance for Down's etc.
I also learned at least one of the babies (it is twins) is a boy. They did detect a Y chromosome which in a singleton pregnancy I would know I was having a boy, since I have twins, we just know there is at least one boy. Could be two boys or one of each. I'll have to wait for the AS in a few weeks to know for sure! I see the MFM for the first time in 2 weeks, when I am 16w, so hoping they can tell then since they have the really high end sono there.