I got my ultrasound for my gender done at 13 weeks

Kathleen
So I got my gender done at 13 weeks . I paid a lady to do it , I traveled over two hours ! So I have a question for you guys, I did some research and it said the boy and girl look the same at 12-14 weeks.... Both genders look like a penis because the vagina is not formed yet, How true is this ? Does it look like a penis? Or could it be a girl? The lady said right away it was a boy?