This is a 3D picture of my son at 18weeks, you can deff. tell it is a baby but they aren't near as good as my ones I have gotten done latley, but if you ask me it was worth it, I did the same thing as you because I was 22weeks when my doctor did my ultrasound and I didn't want to wait that long for them to tell me my baby's gender and at my hospital they dont even have to tell you, so I went in to my local 3D imaging place and it was $200 I live in Alaska where everything is more $$$ but it was worth it because the lady was so nice she let me come back free of charge at 26 weeks and again at 27 weeks and im about to go in on Thursday at 30weeks and she has done these last three free of charge I think I have really grown on her though,

but anyways I would do it if I were you