With my first child, I knew as soon as I found out I was pregnant, that it was a boy. I just knew it. At the scan, I told the sonographer it would be a boy, there was not Question about it, and she was laughing at the conviction in my assumption, not so much when I was right. She even asked if I'd had a scan prior to find out!
This time, I feel it's another boy. I don't feel 'as strongly' about it, maybe I'm becoming more cautious in my old age LOL.
Have you guessed your genders right each time?
Why did you pick that gender?