No they will automatically put in an order for it to be done at 20 weeks. They do an ultrasound around 20 weeks for all pregnancies and that's when you will find out the gender. They check growth and check for any possible problems then tell you gender.
I don't see why not. Parts are fully developed by then. My dr checks the gender at 16 weeks.
I found out at 15 weeks and 5 days that it was a girl...i gave birth to a girl.
Depends on the doc I found out at 19 weeks I was having a girl they'll let you know when your coming for a gender ultrasound some docs don't like to do it too early because parts are not very clear yet so mine waited untill I was 19 I rather wait then do it early but they should tell you what your having your next appointment