you can do it in Wk 11 and after. I went to Kwong wah hospital yesterday as I requested for it a week ago. I dont want to wait for wk 16 as well. The process is not as painful as I thought. I closed my eyes all the way. I requested for a fast report HK$1300 for checking T21, 13, 18 and XY gen. Verbal result would be given in 1-2 days. I am a bit scared now. God bless me!