Can't tell what I'm looking at in your ultrasound. For what it's worth, I would tend to believe a doctor who was looking at the ultrasound over an online quiz.
It's really tiny, but I think it also looks like its a boy. I don't personally trust online quizzes because they don't mean much. They have a 50/50 chance of being right no matter what. You should get a proper 20 week scan to check growth and measurements and they can tell you again for sure what the gender is.
Thanks for your opinions guys :) and clysta i would love too! but my doctor refuses to give me another one because my insurance doesnt cover that. so i dont think i will be getting one soon and i want to start buying stuff but im scared that it will turn out to be a girl.
Hm. Its odd they would have done it at 16 weeks then. Who knows. But anyways. Just keep all the receipts and if it does by chance come out a girl you could return it. You could also buy gender neutral things for all the large stuff.