I was POSITIVE we were having a boy. I was so sure of it that when we went to Vegas in October, I went ahead and bought a whole bunch of boys clothing in Ralph Lauren, Baby Guess and Nautica as it was so cheap. My DH thought I was insane so he picked up a cute pink Baby Guess outfit for a girl as a just in case. My MIL was sure we were having a boy. My mum told us about all the little baby boy dreams she was having so we were for sure having a boy. Had a gender scan at 16 weeks and sure enough .. he was a SHE!
I wish I had been able to do the surprise thing but I'm so OCD that I don't think I could have handled not being prepared. I have to be 200% prepared for whatever I do and having a baby especially! It fills me with anxiety to think about NOT knowing the s.e.x. of bubs