So Confused!

I've been having u/s since probably 14 weeks to try to find out what we were having. I know thats early, but I knew Noah was a boy at 14 weeks. Anyway, everytime I got scanned, the baby was not in the best position. He/she has been keeping his/her legs closed, in indian style. The techs would try different things to get him/her to move and each time they wouold see something that looked like a penis so I've been thinking it was a boy. Picked out the name, ordered bedding (monogrammed), ordered furniture and bought a few clothes. I've come to know this baby as baby Seth and I was fine with having 2 boys. I never got firm confirmation, like a picture, of boy parts because he was never in the best position and they would just get a peek. So the other day I got scanned again, to see if we could get a picture and again baby was not is a good position. But the tech said she didn't see boy parts at all. Had another scan after I ate some sugar and he/she was moving alot and eventually opened up. Then tech caught a picture and there it was....3 little lines.....meaning a girl. I was so confused! Happy, but still wondering if it could be true. I mean, can you make yourself see something thats not there? This is a pretty good picture, no penis in sight. So now of course I want another scan and I am being SO IMPATIENT!!! I want to know for sure!! Ugh, it's killing me!!!