Some Drs prefer to do it 19/20 weeks+ and if yur app is before that they make yu wait. But yu should be able to tell by then. I guess just ask when they are doing the scan .
Some hospitals and doctors won't tell you until a specific date so that way they can give you a definite answer. The center I was with before wanted me to wait until 20 weeks, but since I transferred they will tell me after 16 weeks.
Really? My doctor told me I have to wait another 6 more weeks til I can know the gender o.o
Yes The gender is developed no later than 15 weeks
Yes if they do an ultrasound