How early can you find out gender?

With blood work 10-12 weeks ultrasound 14 weeks and up

I did that intelligender for fun but it was right lol. Did it at 10 weeks 

There are different ways. Your OB won't do it before 19-20 weeks if your high risk he will probably do it around 16 weeks. There is this place where I live called me and me they also do16 weeks but you have to pay out of pocket and then the Harmony test 

I found out 14 weeks exactly 

I found out at 11 weeks with genetic testing. You can find out as early as 10 weeks. Confirmed on ultrasound around 17 weeks

I found out at 13+5 on an elective gender scan

15/16weeks via private gender scan.. Unsure on other ways :)